3.0.0: New API

• All methods of all classes are static now. Not need to create instanes of declension classes anymore.

  echo morphos\Russian\GeneralDeclension::getCases('стол');

• Removed few methods:
  • OrdinalNumeral::generate()
  • CardinalNumeral::generate()
• morphos\NamesDeclension gender constants (MAN and WOMAN) replaced by morphos\Gender constants MALE, FEMALE and NEUTER
• Added new Russian declension class - GeographicalNamesDeclension for cities, countries, streets, continents names declension.