Don't ask for category editing pin in profile
Remove category selection for user uploaded pins

Remove from upload from file and upload from url.
Fixed item page to show the item regardless having
a category.
Show items in list regardless having category
Category selection for pins in admin
Select category: fix layout
Add widht and height for images to pins
Upload image with the width and height
Show image preview with width and height

In category listing and lists, when lazy loading,
show space for the image with correct width and height.
Utility to update image sizes
Merge pull request #77 from camilotorresf/fixes

Fixes related to category selection and image size
/admin/input/ change product url to Get It Here
Product page: show button 'Buy It Here'

In the product page show two buttons:
- Source URL: points to source url
- Buy It Here: points to Get It Here in /admin/input/
/admin/input/ change product url to Get It Here
Product page: fix a text error
Use shopping cart icon for buy button
Show Buy It Here button in the profile listing

In the  Show two buttons:
- Source URL: points to source url
- Bet It Here: points to Get It Here in /admin/input/
Use only numbers to generate the image name
Show a 'loading' indicator for the uploader

Show a 'loading' indicator for the uploader to know the images finished loading by an image indicating 'upload' that vanishes when finished
Tag with multiple words in /admin/input/

You can now add multiple tags with multiple words, each tag must have # or it will be considered a single tag.
/admin/input/ manage multple tags in edition

When editing the item in the uploaded tab, allows for tags with multiple words.