create opps pachage core.permissions, #402
replace opps.contrib.multisite.admin, generic package to manager user
permission
migrate multisite.admin to permissions.admin
migrate multisite.models to permissions.models
generate permission initial migrate
generate data migrate contrib.multisite to core.permissions
if project used multisite rules migrate to core.permissions
fix bug NoReverseMatch, if set module not exist on shortcuts admin
used new permission package opps.permissions.admin
fix pep8
create ManyChanneling abstract model
used for select more one channel
Permission model extends ManyChanneling
generate auto migration added channel field
set admin widget filter_horizontal on channel permissions
used AdminViewPermission on channel package
refactoring AdminViewPermission get level channel
today permission rules via channel, user just see the news channel it is
part
on used site_lookup @property send warnings
fix pep8, opps/core/permissions/admin.py:28:14: E231 missing whitespace after ','
Merge branch 'stable/0.2.x' of github.com:opps/opps into issue_402

* 'stable/0.2.x' of github.com:opps/opps:
  Update packages docs
  Use python autoload for import OPPS_HAYSTACK_APPS modules
  Fix PEP8
  Smart import for opps thirdy-apps who use haystack
  Update CHANGELOG
  Add search app who provides a basic config for haystack
update Changelog
Merge pull request #429 from opps/issue_402

Issue #402