Request the tip resource before the receiver resource

This should be done so that the access counter in GLB is increased before we
request the receiver list of the tip resource. If this is not done, we end up
with an off by one error.
this fixes:
https://github.com/globaleaks/GlobaLeaks/issues/104
Merge branch 'master' of github.com:globaleaks/GLClient

* 'master' of github.com:globaleaks/GLClient:
  extended overview data
  completed workflow of overview https://github.com/globaleaks/GlobaLeaks/issues/60 #43
  updated "Source Code" link to https://github.com/globaleaks/GlobaLeaks
  implemented supports for tip timetolive
  tried view/controllers for Overview
  start of system overview
  thumbnails expected by default