Merge pull request #2 from Dima4ornenky/vk

add authentication with Vk
add vk and facebook
Merge pull request #4 from Dima4ornenky/vk+faccebook

Vk+faccebook
add authentication with google+
Merge pull request #5 from Dima4ornenky/google+

add authentication with google+
add authentication with twitter
Merge pull request #6 from Dima4ornenky/twitter

add authentication with twitter
add resize images for post
fix resize
Merge pull request #7 from Dima4ornenky/resize

Resize
Merge pull request #8 from Dima4ornenky/dev

Dev