LDEV-3293: fix hibernate dtd declarations. Change 'hibernate.org' to 'www.hibernate.org'.In order for hibernate DTDEntityResolver not to load hibernate-mapping-3.0.dtd from internet (and use local one), namespace declaration of dtd must exactly match the namespace declared in DTDEntityResolver class.
LDEV-3293: Use Spring support for Hibernate 4 instead of 3 (session factory and filters).Use new path for Hibernate DTDs. Make XDoclet generate hbm.xml files with the correct path by providing it a new template.
LDEV-2080: For all remaining tools - changed the way Hibernate properties are declared. Even for tools that did not need it the file was changed, so usage is the same everywhere.
LDEV-2079 use the same language as users in pixlradded an admin page with a tet field that has all the currently supported languages in a comma-seperated string which can be updated by system admins if there are new languages added to pixlr that we are unaware of