* Move mail_environment in root folder
* Use absolute imports for openerp and new Model classes
* Use cr argument instead of cursor, propagate context
* Update fields, remove deprecated 'method' argument, change 'states'
otherwise the fields are not readonly (seems that the 'states' of the
original field is kept.
* Activate the installable flag
* Indentation of the view with 2 spaces
* Remove only the attrs attribute instead of redefining the whole field
* pep8
* crm is not a dependency for mail_environment
* Fix typo in manifest