Fix some warnings.
Merge pull request #41 from GalacticMegacorp/develop

Fix some warnings.
Merge branch 'master' of github.com:Cocoanetics/DTFoundation into develop
Small fix -> on NSFileHandle set error to nil -> Because in my case output gzip file was not existing -> Everything worked fine but but Error from NSFileHandle was returned in completion block.
Added shared scheme for Travis
Added Travis build file
Fixed build target for Unit Tests
Try less parameters
added iphonesimulator
Removed active arch only for Static Lib
removed more build active arch only
Corrected build flags for libraries and Mac framework
Removed log in unit test
fixed Analyze dead store warning
Merge branch 'develop' of https://github.com/Cocoanetics/DTFoundation into barz-master