Localisation updates from http://translatewiki.net.
Remove SOTM US advert
Potlatch 2 localisation updates
Update Potlatch 2 to 2.3-500-g740307e build
Implemented Gravatar support
Improve the user image selection UI
Update database schema
Add SoTM Scotland banner
Update Potlatch 2 to 2.3-502-g0247dab build
Localisation updates from http://translatewiki.net.
Potlatch 2 localisation updates
Update Potlatch 2 to 2.3-509-g0221790 build
Avoid unnecessary array allocations
Allow cross-origin requests to API
Update bundle
Revert "Add SoTM Scotland banner"

This reverts commit 749caaff73596e284c39ce7d0a840f8a0a50687d.
Improved user icons
Add /user_blocks/ to robots.txt disallow

Add Disallow: /user_blocks/ as the content is not suitable for indexing.
Removed incorrect margin between zoom in and zoom out controls
Minor style overhaul to sidebar

A number of small usability improvements / fixes, including:

* Small inconsistencies in spacing fixed
* Links now visually differentiated from headings in the menu
* Search bar actually looks right (or at least not as broken) in IE7 now
* New heart on the donate button + larger click area on the donate button!