Remove pip_version_check
Raise exception describing the directory missing.
Add working setup.py

This will also download the latest master of glclient and build it
Remove useless code for install_requires
Merge remote-tracking branch 'origin/master' into feature/setup.py

* origin/master: (21 commits)
  minor correction on path creation
  on ummet requirements quit must return -1
  implemented integrity check in internalfile + fixed a bug
  Testing againt Twisted 13.0.0 Default runlevel set to critical.
  minor correction in loglevel settings
  scripts/sbootstrap.sh removed and moved to https://github.com/globaleaks/GlobaLeaks/blob/master/install.sh
  more exception handling and bug solving of cyclone_debug + file upload
  restored mail_exception and cyclone_debug
  added --version and version info in /node API
  cleaned fdesc and fixed a reference bug
  bootstrap script updated to handle Globleaks main repository.
  implemented the same temporary fix to other situations (https://github.com/globaleaks/GlobaLeaks/issues/116)
  temporary fix to https://github.com/globaleaks/GlobaLeaks/issues/116
  file upload max size: https://github.com/globaleaks/GlobaLeaks/issues/109
  fixed logs and few bugs again
  solved/removed all the TODOs
  Implement log file rotation.
  approached a bug happening in installation without jpeg-dev
  Fix md5 verification to work with GNU md5sum
  fixed a bug on Linux #92
  ...

Conflicts:
	bin/globaleaks
Merge pull request #97 from globaleaks/feature/setup.py

Feature/setup.py