TACHYON-87 TACHYON-89 TACHYON-91 Rename with Google Style

Finally TACHYON-87 TACHYON-89 TACHYON-91 (tasks from TACHYON-28)

Change the naming for final variable from upper case final to camel cases
Change the class members to be prefixed with 'm' and static variables prefixed with 's'
Change all loggers to be static final

This is an epic PR after successful merge from master.

Pass all tests and standalone master-worker.

Lets just merge this changes so next contributions would follow the right style.