Get kernel version numbers
Get the patchlevel as well
Distinguish between '3.6 or lower' and '3.7 or higher' kernels
If running kernel is < 2.6.38 abort
Fix previous commit
Cosmetics
makefile handles both 3.6 and 3.7 situations
Add dvbdev.h for 2.6.38 up to 3.6.x kernels
Use canned headers for both 3.7 and up as well as 3.6 and down kernels
if --dvb-dir=/some/dir is not set
Set new files to executable