Merge pull request #2075 from sjinks/memcached

Ability to disable key tracking for Memcache/Libmemcached backends
Merge pull request #2076 from sjinks/router_typo

Fix fatal typo in phalcon_mvc_router_group_add_helper()
Merge pull request #2077 from sjinks/issue-2071

Fix Array to string conversion in Phalcon\Http\Response::redirect()
Clean up #include
Replace placeholders even if the string is not in the language content

Fix #2044
Test case for #2044
Updated CHANGELOG
Merge branch 'issue-2044' into all-fixes
Regenerated build/