Fix some wrong components used, and use more specific date components when posssible
Merge 26b168a2af54ef31df4fe9b4c2a3d1071678c5a4 into 5fef265ed39cff347456140b4f7097bb7d04b47d
Corrected isThisYear method
Merge 98bcab4708db9c45552176d544fe47a95fd64cb8 into 5fef265ed39cff347456140b4f7097bb7d04b47d
Merge remote-tracking branch 'pr/16/merge'
cached `[NSCalendar currentCalendar]`
create NSDate-Extensions.podspec