fix editTransformer style
transformers: remove 'toggle grouping' feature
fix issue RavenDB-1864: make name list on the top right auto refresh
fix some code semantics in transformers
HTML5 Studio: transformers: show errors recieved from server
fix issue RavenDB-1870 Errors from server does not contain the recieved message
fix issue RavenDB-1872 Add new Transformer and Index don't work from main "New" Menu
started implementing RavenDB-1873 Implement document search