Fix displaying of details

Last access now shows "Today <time>" or "Yesterday" or the date
accordingly
Add test for displaying of details
Merge branch 'master' into ShowDetails
Remove UtilZip warning
Merge pull request #444 from Catrobat/Refactorazione

Remove UtilZip warning
Changed the strings to Draw new image and Choose image
Merge branch 'master' into Issue#404
Refactor LookFragment.java
Added From Camera option to Add Look Dialog
Merge pull request #447 from Catrobat/Issue#404

Refactored Add Look Dialog
fixes #404

reviewed by @sjaindl, @styp, @felly
Merge pull request #448 from Catrobat/fixBroadcastMessages

Fix broadcast messages
strings refactored
Merge pull request #449 from Catrobat/refactorStrings

strings refactored
refactored some other strings:
removed process and sharedUserId
Merge pull request #450 from Catrobat/stringsRefactoring

refactored some other strings
Merge pull request #443 from Catrobat/ShowDetails

Show details
Refactor remove unused broadcast messages.
Merge branch 'master' into Refactorazione
Change unused broadcast message set to list.