Merge pull request #7 from ondrej/master

Include all header files needed to build via Carthage.

Merge pull request #7 from ondrej/master

Include all header files needed to build via Carthage.

Bump podspec version

Bump podspec version

Own deep mutable copy implementation

Minor fix: returned type of ds_deepMutableCopy method

'removeAdditional' option now modifies original data as it should

Update podspec

Version bump.