Ext.Slider fix in IE9

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2548 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
removed unused (and misspelled) text key

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2549 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
REST Webservice: added server info

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2550 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
fixed object grid editing (key-value blocked editing because it wasn't an optional field

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2551 1f8fe7d8-47f0-464c-8d0a-336f4953ab05