Merge pull request #178 from ebraminio/master

[fa] Some clean up on rules and annotate to since version
[ca] fixed false alarms
i18n update from Transifex
small code simplification
[ta] Added three rules

- 'valadhu'
- 'vaakkil'
- 'vegu'
[nl] update from Ruud Baars
179 avoid code duplication (#179)
fix error position
[ca] date check added
[ta] four rules added

- 'yEn'
- 'oru'
- 'ozhiya'
- 'kaattilum'
[ru]  add new compounds from aot.ru dictionary
[fr] fixed false positives.
[ca] remove duplicate names of months
[fr] check consistency between date and day of the week.
[fr] set the French calendar in fr/DateCheckFilter.java.
[fr] updated CHANGES.txt for date checking in French.
[de] fix false alarms
[de] fix false alarms
[de] add missing examples
tiny code cleanup