Add onPopulateFromPostData extension hook
Update UserDefinedForm.php

Add updateAfterProcess hook
Extra Space at line 1018

When a user chose the Plain Text option, the first field would have a blank space preceding the field name.
Added user documentation.
Split README.md and docs/en/index.md so that One is targeted towards users visiting the github repo, and the other for browsing a documentation repository.
Use numericfield for EditableNumericField

Add support for minimum and maximum values
Fix CheckboxGroupField validation (Fixes #209)
Pass submission to finished action.
Got rid of crap
Make sure keys are escaped in the generated JSON.
Merge