fix resetting last program on restart
changed network defines
fix for not reloading when we received all data
display featured image in downloads
remove useless loop
fix rename program bug
Merge branch 'development' of gh:Catrobat/Catty into development

* 'development' of gh:Catrobat/Catty:
  remove useless loop
  display featured image in downloads
  fix for not reloading when we received all data
  changed network defines
fixes #121 and disallow special chars for names
fixes #72 and #136
Merge remote-tracking branch 'origin/development' into development
remove image borders
test commit for 2factor authentication
test for authentication
test for authentication
Merge pull request #153 from Catrobat/development_andi

Development andi