make submitting dialog friendlier, closes #260
fix stylesheet for thanks page
fixes single-submit view
updated enketo-core with fix for inputs with a calculation
upgraded enketo-core with calcupdate fix
Merge pull request #667 from MartijnR/master

fixes for thanks page, single submit view, horrible calculate bug, and a friendlier submission modal dialog
upgraded enketo-core with PROPER calcupdate fix
Merge pull request #668 from MartijnR/master

upgraded enketo-core with PROPER calcupdate fix
Merge pull request #669 from SEL-Columbia/master

fixes for thanks page, single submit view, calculate bug, and a friendlier submission modal dialog