One of the most popular features introduced Monday with Android 4.2 was a revamped camera/gallery app (that we got a peek at early). The camera introduces a new focus/settings UI (popping up with an "options ring" only when you need it), a refresh...
latest version changelog?
welcome to smart world :P
well i would suggest you to enjoy for some time before rooting.understand basics about android and how it works. since u are new to android i would suggest you to read articles about android , newbie guides etc...
which insecure kernel u used?
and is there any superuser app in your phone?
if its not there install superuser from market and try
or else flash ch-kernel first then flash other kernels