diff --git a/addons/account/report/account_partner_ledger.py b/addons/account/report/account_partner_ledger.py
index f02ac96b6fc..c68307641ff 100644
--- a/addons/account/report/account_partner_ledger.py
+++ b/addons/account/report/account_partner_ledger.py
@@ -110,6 +110,7 @@ class third_party_ledger(report_sxw.rml_parse, common_report_header):
                     "AND account.active ", params)
         self.partner_ids = [res['partner_id'] for res in self.cr.dictfetchall()]
         objects = obj_partner.browse(self.cr, self.uid, self.partner_ids)
+        objects.sort(key=lambda x: (x.ref, x.name))
         return super(third_party_ledger, self).set_context(objects, data, self.partner_ids, report_type)
 
     def lines(self, partner):
diff --git a/addons/hr_expense/hr_expense.py b/addons/hr_expense/hr_expense.py
index fe4d0ee5630..05256bbce1c 100644
--- a/addons/hr_expense/hr_expense.py
+++ b/addons/hr_expense/hr_expense.py
@@ -297,6 +297,7 @@ class hr_expense_expense(osv.osv):
             if not taxes:
                 continue
             tax_l = []
+            base_tax_amount = line.total_amount
             #Calculating tax on the line and creating move?
             for tax in tax_obj.compute_all(cr, uid, taxes,
                     line.unit_amount ,
@@ -312,10 +313,10 @@ class hr_expense_expense(osv.osv):
                     ## We need to deduce the price for the tax
                     res[-1]['price'] = res[-1]['price']  - (tax['amount'] * tax['base_sign'] or 0.0)
                     # tax amount countains base amount without the tax
-                    tax_amount = (line.total_amount - tax['amount']) * tax['base_sign']
+                    base_tax_amount = (base_tax_amount - tax['amount']) * tax['base_sign']
                 else:
-                    tax_amount = line.total_amount * tax['base_sign']
-                res[-1]['tax_amount'] = cur_obj.compute(cr, uid, exp.currency_id.id, company_currency, tax_amount, context={'date': exp.date_confirm})
+                    base_tax_amount = base_tax_amount * tax['base_sign']
+
                 assoc_tax = {
                              'type':'tax',
                              'name':tax['name'],
@@ -327,6 +328,8 @@ class hr_expense_expense(osv.osv):
                              'tax_amount': tax['amount'] * tax['base_sign'],
                              }
                 tax_l.append(assoc_tax)
+
+            res[-1]['tax_amount'] = cur_obj.compute(cr, uid, exp.currency_id.id, company_currency, base_tax_amount, context={'date': exp.date_confirm})
             res += tax_l
         return res
 
diff --git a/addons/hr_payroll_account/hr_payroll_account.py b/addons/hr_payroll_account/hr_payroll_account.py
index 879614f9e3e..026585f8ec4 100644
--- a/addons/hr_payroll_account/hr_payroll_account.py
+++ b/addons/hr_payroll_account/hr_payroll_account.py
@@ -23,7 +23,7 @@ import time
 from datetime import date, datetime, timedelta
 
 from openerp.osv import fields, osv
-from openerp.tools import config, float_compare
+from openerp.tools import float_compare, float_is_zero
 from openerp.tools.translate import _
 
 class hr_payslip(osv.osv):
@@ -104,6 +104,8 @@ class hr_payslip(osv.osv):
             }
             for line in slip.details_by_salary_rule_category:
                 amt = slip.credit_note and -line.total or line.total
+                if float_is_zero(amt, precision_digits=precision):
+                    continue
                 partner_id = line.salary_rule_id.register_id.partner_id and line.salary_rule_id.register_id.partner_id.id or default_partner_id
                 debit_account_id = line.salary_rule_id.account_debit.id
                 credit_account_id = line.salary_rule_id.account_credit.id
@@ -175,6 +177,7 @@ class hr_payslip(osv.osv):
                     'credit': 0.0,
                 })
                 line_ids.append(adjust_debit)
+
             move.update({'line_id': line_ids})
             move_id = move_pool.create(cr, uid, move, context=context)
             self.write(cr, uid, [slip.id], {'move_id': move_id, 'period_id' : period_id}, context=context)
diff --git a/addons/im_livechat/im_livechat.py b/addons/im_livechat/im_livechat.py
index be005ed92dc..f455e38e6f9 100644
--- a/addons/im_livechat/im_livechat.py
+++ b/addons/im_livechat/im_livechat.py
@@ -55,7 +55,7 @@ class im_livechat_channel(osv.Model):
 
     def _script_external(self, cr, uid, ids, name, arg, context=None):
         values = {
-            "url": self.pool.get('ir.config_parameter').get_param(cr, uid, 'web.base.url'),
+            "url": self.pool.get('ir.config_parameter').get_param(cr, openerp.SUPERUSER_ID, 'web.base.url'),
             "dbname":cr.dbname
         }
         res = {}
@@ -66,7 +66,7 @@ class im_livechat_channel(osv.Model):
 
     def _script_internal(self, cr, uid, ids, name, arg, context=None):
         values = {
-            "url": self.pool.get('ir.config_parameter').get_param(cr, uid, 'web.base.url'),
+            "url": self.pool.get('ir.config_parameter').get_param(cr, openerp.SUPERUSER_ID 'web.base.url'),
             "dbname":cr.dbname
         }
         res = {}
@@ -78,7 +78,7 @@ class im_livechat_channel(osv.Model):
     def _web_page(self, cr, uid, ids, name, arg, context=None):
         res = {}
         for record in self.browse(cr, uid, ids, context=context):
-            res[record.id] = self.pool.get('ir.config_parameter').get_param(cr, uid, 'web.base.url') + \
+            res[record.id] = self.pool.get('ir.config_parameter').get_param(cr, openerp.SUPERUSER_ID, 'web.base.url') + \
                 "/im_livechat/support/%s/%i" % (cr.dbname, record.id)
         return res
 
diff --git a/addons/product/product.py b/addons/product/product.py
index 763d139e7c5..da17e9532ce 100644
--- a/addons/product/product.py
+++ b/addons/product/product.py
@@ -26,7 +26,7 @@ from _common import ceiling
 
 from openerp import SUPERUSER_ID
 from openerp import tools
-from openerp.osv import osv, fields
+from openerp.osv import osv, fields, expression
 from openerp.tools.translate import _
 from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT
 import psycopg2
@@ -1031,10 +1031,13 @@ class product_product(osv.osv):
         if not args:
             args = []
         if name:
-            ids = self.search(cr, user, [('default_code','=',name)]+ args, limit=limit, context=context)
-            if not ids:
-                ids = self.search(cr, user, [('ean13','=',name)]+ args, limit=limit, context=context)
-            if not ids:
+            positive_operators = ['=', 'ilike', '=ilike', 'like', '=like']
+            ids = []
+            if operator in positive_operators:
+                ids = self.search(cr, user, [('default_code','=',name)]+ args, limit=limit, context=context)
+                if not ids:
+                    ids = self.search(cr, user, [('ean13','=',name)]+ args, limit=limit, context=context)
+            if not ids and operator not in expression.NEGATIVE_TERM_OPERATORS:
                 # Do not merge the 2 next lines into one single search, SQL search performance would be abysmal
                 # on a database with thousands of matching products, due to the huge merge+unique needed for the
                 # OR operator (and given the fact that the 'name' lookup results come from the ir.translation table
@@ -1045,7 +1048,9 @@ class product_product(osv.osv):
                     limit2 = (limit - len(ids)) if limit else False
                     ids.update(self.search(cr, user, args + [('name', operator, name)], limit=limit2, context=context))
                 ids = list(ids)
-            if not ids:
+            elif not ids and operator in expression.NEGATIVE_TERM_OPERATORS:
+                ids = self.search(cr, user, args + ['&', ('default_code', operator, name), ('name', operator, name)], limit=limit, context=context)
+            if not ids and operator in positive_operators:
                 ptrn = re.compile('(\[(.*?)\])')
                 res = ptrn.search(name)
                 if res:
diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 97f7e52105b..d3b1e043881 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -30,6 +30,7 @@ from openerp.tools.translate import _
 import openerp.addons.decimal_precision as dp
 from openerp.osv.orm import browse_record_list, browse_record, browse_null
 from openerp.tools import DEFAULT_SERVER_DATE_FORMAT, DEFAULT_SERVER_DATETIME_FORMAT, DATETIME_FORMATS_MAP
+from openerp.tools.float_utils import float_compare
 
 class purchase_order(osv.osv):
 
@@ -1112,13 +1113,14 @@ class purchase_order_line(osv.osv):
 
 
         supplierinfo = False
+        precision = self.pool.get('decimal.precision').precision_get(cr, uid, 'Product Unit of Measure')
         for supplier in product.seller_ids:
             if partner_id and (supplier.name.id == partner_id):
                 supplierinfo = supplier
                 if supplierinfo.product_uom.id != uom_id:
                     res['warning'] = {'title': _('Warning!'), 'message': _('The selected supplier only sells this product by %s') % supplierinfo.product_uom.name }
                 min_qty = product_uom._compute_qty(cr, uid, supplierinfo.product_uom.id, supplierinfo.min_qty, to_uom_id=uom_id)
-                if (qty or 0.0) < min_qty: # If the supplier quantity is greater than entered from user, set minimal.
+                if float_compare(min_qty , qty, precision_digits=precision) == 1: # If the supplier quantity is greater than entered from user, set minimal.
                     if qty:
                         res['warning'] = {'title': _('Warning!'), 'message': _('The selected supplier has a minimal quantity set to %s %s, you should not purchase less.') % (supplierinfo.min_qty, supplierinfo.product_uom.name)}
                     qty = min_qty