add spec for model GImageCategory
add spec for model Event
fix GImageCategory fabric & spec; add EHistory validations, factory & spec
add factory & spec for model Like
add factory & spec for model Navigation
add factory and spec for model User
add factory & spec for model UserComment
begin write specs for Ctrls
fix EHistory & User validations; append e_history_spec
append event_spec
append g_image_category_spec
append g_image_spec
append like_spec
append navigation_spec
fix factory UserComments; append user_comment_spec
append user_spec
append user_spec
append homes_ctrl_spec
add CategoriesCtrl_spec
add events_ctrl_spec