Added Japanese translation file.
Add ga scripts on page bottom.
removed php close tag
Add plugin info file
Updated tracking code

With this updated code we can access new features of google analytics
Added Japanese translation file.
Merge commit '380b352e84069ba1410bd4f87fd2f09480cff9e7'
Merge commit '46926853afe73e0db3a452ff2ce5173f4b0adde2'