Merge pull request #7 from michelmichel/master

Fix for issue #6
0.0.4 final
bump 0.0.5
fixes #7.  Textarea are not disabled in the mass update
updated docs
added add_to_site() to register multiple actions
check for permission
updated CHANGES
fixed demoproject
merge action
utils
refactoring
Merge branch 'merge'
`merge` action alpha
new signals
added form argument to the adminaction_start signal in mass_update
pep8 and some documentation
added tests
allow to swap origin/other in merge action
merge action (still missing signal management)
Fix broken tests until 1.5 is released