Merge pull request #153 from Catrobat/development_andi

Development andi
Merge branch 'master' of github.com:Catrobat/Catty
Merge pull request #158 from Catrobat/development

Development
Merge pull request #159 from Catrobat/development

Development
fixes background+loadingActivity
fixes search bar issue (not translucent)
Merge pull request #167 from Catrobat/development

Development
removed warnings
fixes #181
fixes #172
fixes #174, #178, #179
started working on search bar issue
Merge branch 'development_marc' into development
fixes #180
some usability improvements for download progress
fixes #173
Merge branch 'development_marc' into development
fileManger + statusBar activity
FileManager+ statusBar activity
wrong title in LooksTVC