initial working proposal
Addresses issues in page cache implementation

Now uses CMS_CACHE_PREFIX for page cache version item to prevent clashing with other projects using same cache-backend. Also, avoids an issue where the master version could expire before entries cached against it due to the use of cache.incr() (which doesn't advance the TTL).
add page, dublicate page and add child page
ensure correct params are set
to be secure, also check page_id
Merge pull request #11 from FinalAngel/features/pagetypes

ensure correct params are set
try at a first test
Merge branch 'pagetypes' of github.com:digi604/django-cms into pagetypes
tests
migrations
fixed tests
docs
Merge pull request #2804 from mkoistinen/fix_page_cache

Addresses issues in page cache implementation
format
Merge pull request #2794 from digi604/pagetypes

page types
Merge branch 'develop' into fix-2788

Conflicts:
	cms/admin/pageadmin.py