Master fixes

Some minor things I'd like to change:
* I like the Release version as specified in META in all my packages.
  Commit: bc5d91cf0df600a58ed35e11eab258639f0d1f7c, 19b1b34ffdb682cedd5057abfd28b0c12b8bb17f

* I don't usually install my new kernel before building spl/zfs, but do all the builds after each other. Which means the /lib/modules/<version>/build link don't exist. Support using the options specified with ./configure - I usually do a configure && make && make deb, because of either fails, it's no point in continuing.
  Commit:78d57c8cac1b69fa5c14b08d0c4a6d1b146324e3

* I still have problem with zvol_id. Probably because I run a 64bit kernel with 32bit userland (haven't had time to reinstall the machine). Besides, there is really no _requirenment_ for zvol_id to be optimized etc and removing '-g -O2' from building it solves the problem.
  Commit: 0e098431db2e597833cd79e8e6ee25294c4e7808