update gems to rails 4
Merge branch 'master' into rails4
update various files to rails 4
fix bootstrap import
upgrade to bootstrap 3
more rails 4 fixes
various fixes for tutorial
replace buttons
upgrade simple form
fix alert message class
fix issue with date pickers
fix more buttons
fix a few scopes
fix issue with pdf generation
fix a few issues on print stylesheet
fix a few pdf design issues
update pagination gem
Merge pull request #2 from Zeitkit/rails4

Rails4