Improved basedir resolution

http://stackoverflow.com/questions/59895/can-a-bash-script-tell-what-directory-its-stored-in
WIP
yum-utils now in buildtools image
Clean up pidfile after successful shutdown
Set perms on dirs
Fix perms; /var/lib/consul needs to be writable
Merge pull request #2 from blalor/consul_rewrite

Finalize consul package