add *require 'yaml'* to omniauth.rb
add userModel to activeAdmin
add models user, user_comment, g_image, g_image_category, watching_category to active_admin
add model service to active_admin
modify active_admin.js to coffee & rm flash with 1 click
add nokogiri; create CATS-parser; modify model Image
Merge branch 'Try_nokogiri' into Try_active_admin
research active_admin: index page sortable [associated object (1 to 1 relation) SUCCESS, (1 to many) FAIL; formtastic forms; AA index actions; change images category (move image with all size-versions to other directory on server)]
fix updating g_image
change ImageUploader store_dir; update seeds.rb; recreate DB
set menu priority to AA models
modify AA models: pages, forms
add AA Like & Navigation; update Service
add filters to AA/like.rb; cha nge time format in AA forms
add user events statistics (index page) to AA
link Events only for admins
Try Arbre helpers to create a table
Merge branch 'Try_active_admin' into dev
User can only 1 time liked the image
modify text_area on picture#show