Added auxiliary check for MS08_067

I simply copied the check from ms08_0867_netapi.rb and put them in
a auxiliary check so I could scan for it. This was done because
Nmap's check is not safe and this is more stable.
Fix outstanding issues
Merge remote-tracking branch 'origin/pr/1' into ms08_067_check
Fix moar outstanding issues
Merge remote-tracking branch 'origin/pr/2' into ms08_067_check
Fix even moar outstanding issues
Merge pull request #3 from wvu-r7/pr/2848

Fix even moar outstanding issues
Added credits and clean initialize

Added wvu to creds as he did most of work. ;)
Clean up formatting
Merge pull request #4 from wvu-r7/pr/2848

Clean up formatting
Land #2848, @sho-luv's MS08-067 scanner