Fixes #22 and updates font icons to Foundation 3
adding default value to final flag for document

default value is false
Fixes #21

adds option to partly accept a comment, contains script to migrate existing data
updates to Symfony 2.3.6
Fixes #20

the reply message is now optional for all of the possible results, it's up to the user if he or she decides to provide an explanation, making it a required field does not enforce to use it properly anyway