rules 6.x-1.2

most notable changes since 6.x-1.1:

• #597330 overhauled experimental features support --> Features support is considered stable now.
  * Dropped support for single rule and rule set components. Still they can be exported by category.
  * Fixed exporting by category to work fine with the latest features dev snapshot.
  For instructions how to fix existing features making use of rule components see this comment.
• The rules forms actions for disabling form elements has been removed, because it had some serious problems. More infos at the issue.

changes for rules since 6.x-1.1:
#744300 Fixed warning "Unsupported operand types in rules.export.inc" when using features.
#748120 make sure revision don't get doubled when reacting on the creation of a node revision
German translation completed and aggregated to one file
#723980 patch by Steven Jones: Expose string variables as token.
#703294 patch by Berdir and me: fixed a PHP 5.3 warning in the rules admin UI and fixed passing rules by reference for the import hook.
Bug #517396 by fuerst: fixed user roles at account creation
added Ukrainian translation for rules
#588454 fixed a php 5.3 warning
#586128 fixed breadcrumb leaves out Rules level in some cases
Updated Japanese translations.
#551316 patch by klausi: added missing API docs for hook_rules_default().
#490908 patch by AlexisWilke: fixed action argument label that incorrectly used "Term" instead of "Vocabulary"

changes for the rules forms support since 6.x-1.1:
#697888 by joelstein: use textarea in set form error action setup
Bug #733558: Removed disabling form elements because the action breaks data
Bug #703294: removed a useless reference in the import hook
#612060 fixed setting default values for node reference and user reference fields
#557892 by klausi: Fixed the module weight
#557906 by klausi: Fixed a form caching bug