add seeding to setup rake task
allow iframes in ckeditor
use better errors
remove length validatoin on image upload field
update changelog
Merge pull request #202 from screenconcept/features/3045_iframe_in_ckeditor

allow iframes in ckeditor
tidy up Rakefile and use single quotes if possible
update changelog
Merge branch 'features/dummy_seeds'

Conflicts:
	CHANGELOG.md
resolve merge conflicts