Updated outdated screenshots
ACT-1593: final bits and pieces before the big release. Docs + final tweaks.
Merge branch 'master' of github.com:Activiti/Activiti
ACT-1593: specially for Tijs.
Merge branch 'master' of git://github.com/Activiti/Activiti

* 'master' of git://github.com/Activiti/Activiti:
  ACT-1593: specially for Tijs.
  ACT-1593: final bits and pieces before the big release. Docs + final tweaks.
  Updated outdated screenshots