Added "required" attribute to the form (for  nice client side validation)
Added tests for "required" attribute
Make Python 3 compatible
remove u string prefix
Merge pull request #32 from jonashagstedt/master

Added the "required" attribute to inputs
Merge pull request #42 from Markush2010/python3

Make Python 3 compatible
Preparing Travis for Python3
Fixing Travis config
Fixing Travis config
Fixing Travis config
Version 2.2.0, Python3 compatibility and including required attribute in inputs