spaces 6.x-3.0-beta1

Consider this a major branch upgrade task if you are updating from the 2.x branch. Read README.txt first, make a backup and don't get pwned.

• Adding api.php file for spaces_dashboard.
• Adding API.txt
• Updating README.txt
• #703118: Move OG group init to proper method and add language init.
• Cleanup to exported presets, sort, dedupe and no empties.
• #548430 by dylan.riordan: Allow group custom theme to be set.
• Spaces OG: Adding missing OG Views dependency.
• #687696: Allow old syntax of feature spaces types declaration.
• #689928: Allow access to node types provided by spaces-agnostic features.
• Prevent button values from being saved.
• Fix for menu order saving when menu path contains fragment.
• Making exported preset titles and descriptions translatable.
• Fixing validation of the space frontpage element.
• by miccolis; Exception for feature access in admin section
• Fix for overly-aggressive taxonomy term rewrite sql.
• Update for strongarm API owner change.
• Don't init user space for anonymous users.
• User autocomplete tests.
• Spaces OG: Splitting tests into separate classes, adding taxonomy autocomplete
• Don't allow regular users to willy nilly edit dashboard settings
• Fix for group node PURL saving and dbrewritesql().
• User autocomplete override.
• Don't init user space on autocomplete callback.
• Switching out call to deprecated featuresmenulinks().
• Generalize menu re-ordering beyond the features menu to any primary menu links.
• Only attempt to sort menu items by weight if there are actually weights.
• Removed call-time pass by reference, fix by Will White
• Fixing spelling mistakes.
• Adding a readme file for spaces_dashboard.
• Moving groups tab under user/uid/edit/groups & removing title callback for the page.
• ksort() on dashboard settings page categories.
• JSON for IE7.
• Clear the preset cache when changing the status of a preset.
• Cleaner handling of spaces dashboard block access.