Merge branch 'release/v1.0' into develop

* release/v1.0:
  Set version numbers in plugin and readme
Merge branch 'hotfix/fix-apc-fetch-of-arrayobject' into develop

* hotfix/fix-apc-fetch-of-arrayobject:
  Bump version numbers and update README
  on APC fetch convert arrayObject back to array
Merge branch 'hotfix/fix-reverse-logic-in-incr-decr' into develop

* hotfix/fix-reverse-logic-in-incr-decr:
  Update version numbers and README
  Fix inverted logic in incr and decr functions
If APC not available fall back to storing everything in local
implement wp_cache_get_multi
Add method of flushing cache by group or site
Store grabbed versions and use them if been requested again - race condition reason
If no site passed to flush sites then flush current site
Add docs
Merge branch 'feature/flush-site-and-groups' into develop

* feature/flush-site-and-groups:
  Add docs
  If no site passed to flush sites then flush current site
  Store grabbed versions and use them if been requested again - race condition reason
  Add method of flushing cache by group or site
bump version numbers and update readme
Merge branch 'release/v1.1'

* release/v1.1:
  bump version numbers and update readme
  Add docs
  If no site passed to flush sites then flush current site
  Store grabbed versions and use them if been requested again - race condition reason
  Add method of flushing cache by group or site
  implement wp_cache_get_multi
  If APC not available fall back to storing everything in local