Several bugfixes for lmap
* fixed bug where lmap would not correctly mknod the device file
* created preprocessor switch to remove debug logging from release driver completely
* prioritized lp.ko as host, relaxed rule where unknown warnings on module load would cause an abort
* Upped version to 0.3

BUG=
R=scudette@gmail.com

Review URL: https://codereview.appspot.com/103610043