Fixed lsmod.
Fixed mls, mfind, mcat tests.
Added the linux tests to travis.
Fixed bugs in module.c that prevented us from generating correct profiles because we were hardcoding internal structures not taking into account changes in different kernel versions. Also, the linux kernel version check order was wrong previously on the mountpoint code.

BUG=
R=scudette@gmail.com

Review URL: https://codereview.appspot.com/187780043