Merge pull request #191 from modilabs/master

submission counter fix and some other little things
Merge pull request #192 from modilabs/master

new API
Merge pull request #195 from modilabs/master

2 fixes (saving/submitting and edit instance)
form header logo always an image
PEARifified front controller
fixed issue with transformation cache when form contains no media files
removed faulty and unnecessary logging code
added logo image to all web form views
font and logo css fixes
Merge pull request #547 from MartijnR/master

fix for transformation cache, logo is now an image