- Added new plural tag "kPluralDecimalSeparationTag".
- Added Lang::PluralType for default, shorted and decimal separated numbers.
- Replaced members and votes count with decimal separated type.
- Added new plural tag "kPluralShortTag".
- Added support of new plural tag to code generator.
- Removed FormatViewsCount from history_message.
- Removed FormatLargeNumber from history_media_poll.
- Added FormatCountToShort to lang_tag.
Sum of percent values should never exceed 100%. If any two answers
received same amount of votes, they should show same percent values.
This way sum could be less than 100% (three answers, one vote each),
but this looks better than giving extra vote to some random answer.