[ja] Added half year formatter class
[ja] Added a parser for SQL "yearMode" argument
[ja] Added a config fir HalfYearFormatter
[ja] Added tests
organized precompiled headers
[ja] Exposed public properties
[ja] Added more parameters to half year formatting function
[optimization] Using dispatch_once() for NSLocale constant
Removed obsolete include
[ja] Half year function takes 5 arguments now
[ja] Added more public API
[ja] Added a boolean flag for "yearTruncationMode"
[ja] Extracted year mode enum
[ja] Fixed appledoc comments
[ja] Added a localiser for both half year and text
[ja] Exposed public classes
[ja] exposed a localizer config property