#351 Upgraded version of nHibernate, fixed tests and page rendering command
#351 Fixed getting of widget categories
Merge branch 'dev' into dev-nHibernate-upgrade
#351 Changed logic of loading and saving page options
Merge branch 'dev' into dev-nHibernate-upgrade
#351 Fixed query bugs due to nHibernate version 3.3.3.4
#412 When creating slug, adding backslash
Merge branch 'dev-nHibernate-upgrade' into dev
#351 Upgraded version of nHibernate