Added Java-representation of the remaining vk datatypes, methods from sections 'friens', 'groups', 'wall' (was method 'post' only) and some required fields.
Added Java-representation of the remaining vk datatypes, methods from sections 'friends', 'groups', 'wall' (was method 'post' only) and some required fields.
Merge pull request #8 from alexxpert/master

Extension of the model VK API