Installation via DKMS (with manual fallback)

This replaces install.sh/uninstall.sh with script installing sources into
/usr/src and adding them as DKMS module.

Using DKMS ensures MPSS drivers are installed & built on every kernel update.

See: http://linux.dell.com/dkms/manpage.html

Previous manual installation provided by: ./install --no-dkms
Help it provided by: ./install --help