Fixing default variable.

s/USER/USERNAME/ . Bug introduced after fix #958 (herp derp).
Add back python-pip to Depends in debian/control.

python-pip is not listed in requirements.txt, and not automagically added by
${python:Depends}.
Reach a ready-to-use vagrant globaleaks machine with vagrant.

* Relax hypotheses on requirements.txt to run globaleaks.
  Storm 0.19 is actually not supported, and is the one we should change back as
  soon as possible.
* Create a globaleaks.sh file to handle the installation of globaleaks.
  (Notes are inside the file.)

To work on:
* Do not assume an existing globaleaks debian file to upload?
* Make globaleaks version a packer variable.
Use bower when building debian package.

From::
Running "uglify:generated" (uglify) task
File tmp/loader.js created: 0 B → 0 B
File tmp/scripts.js created: 325.38 kB → 232.55 kB
To::
Running "uglify:generated" (uglify) task
File tmp/loader.js created: 3.32 kB → 3.19 kB
File tmp/scripts.js created: 2.22 MB → 800.16 kB