Merge pull request #117 from oakoval/live

Websearch by hashtag
Merge pull request #118 from oakoval/live

Added fetch images animation
feed system with api
updated cache refreshing script
small fixes
In category listing: load 50 items at a time
admin edit pins: paginate 50 items in category search
edit pins: change to edit with button and image

In order to allow multiple selection of items, the edition of the pin is done now through a button or the pin image.
edit pins: edit only through the button, not image.
edit pins: Select and Unselect all pins
edit pins: Button to delete selected pins
Add an option in admin to remove items from categories
Fix pagination in category selection
Add an option in admin to remove items from categories
Update settings.py

Set SEARCH_PINS to false to prevent site pins from appearing in the search results.
Merge pull request #120 from camilotorresf/fixes

Fixes for pagination and category selection/deselection
added feed from users follows boards
Merge pull request #1 from pdelkowski/live

Final newsfeed system
Add loading animation, user search, search by hashtag