BUGFIX Versioned_Version->relField() so fields can be used in GridField etc

Copied from DataObject, since we can't use the $fallback opion in this case
(will try to retrieve from wrong class)
BUGFIX: fix for broken layout in insert media dialog - Trac #8232
BUG setBody on SS_HTTPRequest is a function

When settingt he cached body on the RESTfulService_Response, the setBody should be a function call, not a variable assignment
ENHANCEMENT: fixed styling bug with the text in the file upload drop area and moved allowed extensions up a tad
MINOR:forgot to add the fix to the insert media upload field - styles from files section were breaking it.
BUG Undefined var

Getting the curl error.
BUG UnsavedRelationList aren't checked

When saveInto is called on ListboxField and CheckboxsetField,
UnsavedRelationList should be an acceptable relationship type. This is
leading to relations not being saved on initial creation of Member
objects
FIX handleAction methods should be protected now
API Make Object::config use late static binding

Can now be used in instance scope, like:
  $this->config()->db
and in static scope, like:
  Page::config()->db
Cache the merged version of any Config value in an in-mem LRU cache
Extract statics via code analysis rather than introspection
Add ability to create temporary Config copies
FIX DataObjectSchemaGenerationTest trying to modify config statics directly
Some micro-optimisations for Config
Fix alignment of selects within GridField filters
Add no results warning to GridField print view.
FIX GridField export and print actions should preserve state.
Docblock and coding conventions for GridField related classes.
FIX: Do not blindly pass input values to GridField_FormAction URL's

The length of input fields can very quickly exceed the max URI length resulting in 414 errors when printing or exporting results.

To access the input values for a specific GridField action, encapsulate this in your own Entwine instance.
BUG: Preserve alpha channel when cropping

This keeps the alpha channel from turning black.