Updated podspec
Removed FlowLayout from ROADMAP
Merge branch 'release/0.4.3' into develop
Merge branch 'release/4.4' into develop
More safe way of preventing NSNotFound items from being deleted
Merge branch 'develop' of https://github.com/mkloeppner/MKLayoutLibrary into develop

Conflicts:
	MKLayoutLibrary.podspec
Fixed a bug with removeLayoutItemAtIndex
Added rapid XML parser implementation in order to prepare the architecture for an extensible parser
In order to improve testability added a method that is able to parse strings
Extracted gravity as class
Unsupported layout atm
Moved gravity options to MKGravity
Code clean ups
Refactoring code
Further refactorings
Moved a method
Refactored the code
Further refactorings
Further refactoring
Layouting