Updated build documentation (unix).
Updated build documentation (unix).
Merge branch 'master' of https://github.com/thbaumbach/primecoin

Updating to RC3.
Reverted/fixed unix makefile due to multiple complains.
Added -poolshare command line option to adjust the minimum pool share dynamically for rpool (6) and beeeeer (7) without recompiling
Merge pull request #3 from donSchoe/master

Fixed documentation and makefile + poolshare option
thanks to donSchoe