Merge pull request #3 from donSchoe/master

Fixed documentation and makefile + poolshare option
thanks to donSchoe
Merge branch 'master' of github.com:thbaumbach/primecoin
v0.7 , less verbose, password added , testing rejection fix
poolpassword patch, v0.8
actual fix, something went wrong with the last push, sorry
Merge v0.8-RC1 of https://github.com/thbaumbach/primecoin