Supress a warning about an empty array

lib/magic_form.inc
Use database instead of sessions. Big change. Requires module reinstall.
Merge branch 'master' of github.btengageit.net:BT607478707/drupal_magic_forms
Move fields and groups to folder
Add support for checkbox in JS version of code
Merge branch 'master' of github.btengageit.net:BT607478707/drupal_magic_forms
Initial validator code.
More empty validators
format change to the checkbox fields
Provisional initial version with validators.
Merge branch 'master' of github.btengageit.net:BT607478707/drupal_magic_forms
Typo
Typos
Check we have a callback or an action
Validators
Automatic reformat
Fixes bug retaining name
Add classes to outer container.
Save form fields when they get updated with validation, force using previous build of form, if it exists.
Check to see if an earlier, updated build of this form exists.