WYSIWYG - Use name and id correctly.
split id_attr into 2 functions - one to return, one to output
remove href from button
Small text field & code text area should extend standard (text/textarea) fields - and add their own class
Merge branch 'refs/heads/master' into better-groups-and-repeatable

Conflicts:
	classes.fields.php
Merge pull request #46 from humanmade/better-groups-and-repeatable

Better groups and repeatable
Merge branch 'refs/heads/master' into better-groups-and-repeatable-wysiwyg

Conflicts:
	classes.fields.php