fixes #250 + code optimization and cleaning
added some tests
fixes #248
added PointToBrickTests
fixes #262
Merge pull request #267 from Catrobat/feature/ide_improvements

IDE improvements, fixes #209 (#117, #124)
Merge branch 'master' into issue-#248

Conflicts:
	src/Catty/iPhone.storyboard
Merge branch 'master' into testingbranch

Conflicts:
	src/Catty/iPhone.storyboard
Localization added to .string files
fixes #255
Merge pull request #263 from Catrobat/issue-#250

fixes #250 + code optimization and cleaning
Merge pull request #265 from Catrobat/issue-#248

Issue #248
Merge pull request #266 from Catrobat/issue-#255

fixes #262
Merge branch 'testingbranch'

Conflicts:
	src/Catty.xcodeproj/project.pbxproj
Merge pull request #269 from Catrobat/localization

Localization added to .string files
added base web view controller,  refactoring
WebViewController navigation, subviews
changes webviewcontroller, loading view controller from root view controller
changes web view scrolling behaviour
fixes hide toolbars/nav. bar while scrolling down