doc updates, document autosave
If you provide `buttonClasses` attribute on a quickForm, the bootstrap templates now use that as the entire `class` attribute rather than adding `btn btn-primary` to it.
helper optimization
no longer documenting remove forms or afDeleteButton, which are deprecated
document autoform defaults in schema; closes #267
add event, template, formId, and resetForm to `this` within most hooks as appropriate; closes #297
add formId to `this` for docToForm and formToDoc
add `filter`, `autoConvert`, and `removeEmptyStrings` attributes to autoForm/quickForm, which can be set to `false` to override default behavior; closes #301
add AutoForm.debug method; closes #293
document afFieldNames
Add afQuickFields
When all fields that comprise a sub-object are empty, we now unset the whole subobject and do not complain about required fields in it, in case the object itself is optional.
update TOC and API docs
bump version