PIMCORE-1859 Implement RESTful API

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2244 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
REST API: removed custom route

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2245 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
Webservice API: allow session authentication

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2246 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
Adapted REST phpdoc to latest route changes

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2247 1f8fe7d8-47f0-464c-8d0a-336f4953ab05