fixes background+loadingActivity
fixes search bar issue (not translucent)
removed warnings
fixes #181
fixes #172
fixes #174, #178, #179
started working on search bar issue
moved NSData+Hashes to correct folder
import: no square images any more
Merge branch 'development_marc' into development
fixes #180
some usability improvements for download progress
fixes #173
Merge branch 'development_marc' into development
FileManager+ statusBar activity
Merge branch 'development' of gh:Catrobat/Catty into issue#184

* 'development' of gh:Catrobat/Catty:
  FileManager+ statusBar activity
  fixes #173
  some usability improvements for download progress
  fixes #180
  import: no square images any more
  moved NSData+Hashes to correct folder
  started working on search bar issue
  fixes #174, #178, #179
  fixes #172
  fixes #181
  removed warnings
  fixes search bar issue (not translucent)
  fixes background+loadingActivity