OO-244: prevent a rare timing condition if someone logout and open a new browser while a thumbnail is generated (in the real case, the creation of the thumbnail takes 3 minutes)

OO-219 add css markup to better differentiate between done tests and running tests, fix empty table styles

OO-209: make the javascript function which append a listener to keypress more robust, handle severals forms with the same names (tested on Safari, IE 7, IE 8, IE 9)

no-jira: remove duplicate definition in spring configurations, remove unused Dispatcher configuration (duplicaed too)