Master fixes

Some minor things I'd like to change:
* I like the Release version as specified in META in all my packages.
  Commit: 19b1b34, 5964aff

* 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: e9a7cab

* 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: 613b139

* Ignore packages in the root dir.
  Commit: 7fa1b5d

* Possibility to build packages with debugging enabled. Not built automatically though.
  Commit: 5957ee2