[FIX] packaging: tarball nightly test

Workarounded https://launchpad.net/debian/+source/openssl/1.0.1j-1 by updating
requests in requirements.txt and pip in our tests environment.

requirements.txt

@@ -31,7 +31,7 @@ pytz==2014.4
 pyusb==1.0.0b1
 qrcode==5.0.1
 reportlab==3.1.8
-requests==2.3.0
+requests==2.6.0
 simplejson==3.5.3
 six==1.7.3
 unittest2==0.5.1

setup/package.dfsrc

@@ -30,6 +30,7 @@ RUN apt-get update -qq &&  \
 		python-pip \
 		build-essential \
 		python -y && \
+	easy_install --upgrade pip && \
 	rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt /opt/release/requirements.txt