typo
#78 rename Memcached to Memcache

This backend uses Memcache extension, not Memcached.
Merge pull request #83 from tmihalik/master

typo
Merge pull request #87 from tiraeth/patch-1

Rename Phalcon\Cache\Backend\Memcached to Phalcon\Cache\Backend\Memcache
Merge pull request #90 from digitronac/master

fixes in functional and model test case
Merge pull request #91 from digitronac/master

added some changes for more convinient testing
Merge branch 'master' of git://github.com/phalcon/incubator