Upgrade to Features 2.x

#2857

Overidden variables on hwpi, that should be removed from strongarm and be ``variable_set()`` on install and upgrade path:

os_booklet
*  comment_book: ``0`` => ``2``

os_classes
* node_options_class: ``array('value')`` => ``array('value', 'promote')``

os_links
* comment_link: ``0`` => ``1``

os_pages
* comment_default_mode_page: ``1`` => ``0``
* pathauto_node_page_pattern: ``[node:title]`` => ``pages/[node:title]``

os_presentations
* comment_presentation: ``0`` => ``1``

os_profiles
* comment_person: ``0`` => ``1``



Overridden permissions:

os_events
* ``create event_signup_simple registration other users``: Add ``anonymous user``
* ``edit event_signup_simple registration state``: Add ``anonymous user``
* ``update own event_signup_simple registration``: Add ``anonymous user``

Overridden views:

os_profiles:
* ``os_profiles``

os_reader:
* ``reader``