Merge pull request #47 from camilotorresf/pin-loaders

Important changes to pin-loaders page
Get list: add to a list instead of category
Get list: fix name for fields
Get list: creates a getlist when adding an item
Get list: fix create getlist
Get list: fix board listing
Show preview of selected image in add-from-website
Add from website ask for a getlist
Add from website insert the item in a list or creates a list
Show the items of a list
Add to a list when uploading an image
Merge pull request #48 from camilotorresf/getlist

Getlist
Fix __template__() takes at least 3 arguments (2 given)
Merge pull request #49 from camilotorresf/getlist

Fix __template__() takes at least 3 arguments (2 given)
API application added. Notification query hander implemented
Merge pull request #51 from iscarface/live

API application added. Notification query handler implemented
Category listing: separates category listing into module
List in 5 columns first 50 items
Loads more items on scroll
Create 212px width thumbnails if does not exists