Adapt variables to C naming convention.
Adapt variables to C naming convention.

Change-Id: I107e8a17b029b74de6b89385c6961859262e1bb6

Kurento/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,TribeMedia/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements,shelsonjava/kms-elements,Kurento/kms-elements