making question column wider

re #234
make navbar float

re #232
re-run tooltip function after new form in formset has been added

re #231
missing padding in fixed navbar

see http://stackoverflow.com/questions/20789868/bootstrap-3-navbar-right-no-padding-with-navbar-fixed-top
re #232
next attempt at questionnaire widths

re #234
Merge branch 'develop_' into course_types
update language file