Merge pull request #29 from nrobeR/master

(feat) Send device data to database
(feat) Fix the setTimeOut for the first view on each abTest
Merge pull request #30 from nrobeR/feat/ab_test

(feat) Fix the setTimeOut for the first view on each abTest
(feat) Add no-cache to header to prevent gmail caching
Merge pull request #31 from darabun/master

(feat) Add no-cache to header to prevent gmail caching
(inc) Change the memcache device property to device_open
(feat) Serve device/click to database
Merge pull request #32 from nrobeR/feat/device

Feat/device
(bugfix) Set the default timezone to Pacific Hours