LocalizedFields: make it work for REST, added tests for localized input fields and object relations

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2369 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
KeyValue: make it work for REST, consolidate key/group config getters so that they return null just as all other getters, added a test

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2370 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
fixed caching of table columns. this is especially a problem if columns are added within the same process

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2371 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
added REST unit test for bricks

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2372 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
fixed caching of table columns. this is especially a problem if columns are added within the same process

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2373 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
FieldCollection: make it work for REST, added a test

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2374 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
disabled logging

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2375 1f8fe7d8-47f0-464c-8d0a-336f4953ab05