handle array values in form submissions
massive reafctor , ideas around handler settings, mappings, single form
config
move to FormConfig strategy to take advantage of relationlists
introduce new configuration, handler settings
add FlexiFormSetting shortcut
__tostring() appropriately casts setting value
Merge remote-tracking branch 'origin/mass-refactor'

Conflicts:
	code/extensions/FlexiFormExtension.php
	code/model/FlexiFormConfig.php
	code/model/FlexiFormHandler.php
	code/util/FlexiFormUtil.php