Set current page in page manager when editing a page.

Block services depend on there being a current page in the page manager 
(like the PageChildrenBlockService) and fail if it's not set.
Fix website selector size
Manage structure role for page and theme admin
Merge pull request #165 from prestaconcept/structure_edition

Manage structure role for page and theme admin
Fix add page dialog by pressing submit with enter button
Set current page in page manager when adding a new block
Replacing DIRECTORY_SEPARATOR with PHPCR seperator '/' because DIRECTORY_SEPARATOR in windows is '\'
Merge pull request #167 from ZacharyT/master

Replacing DIRECTORY_SEPARATOR with PHPCR seperator '/' because DIRECTORY...
Merge pull request #166 from guided1/fix-ajax-add-page-with-enter

Fix add page dialog by pressing submit with enter button
Merge pull request #164 from bvleur/fix-page-children-block-edit

Set current page in page manager when editing a page.