allow multiple instances of quill_editor

(as long as different ids/names are given)
basic form helper
Merge branch 'multiple_instances' into my_release
make sure that id string is valid

jQuery seems to have some problems with ids containing characters
like '[', which are common in names generated by rails
Merge branch 'form_helper' into my_release
Add support for template overriding
Update quill to 0.17.6
Update version numbers
Remove extra spaces
Switch operans in or statement so @input_id can be overwrite
Update quill to 0.19.7
Merge pull request #1 from watu/master

Update to newer quill and some enhancements