Clear the output buffer for snapins to properly send their files if there's no groups attached with the snapin.  Fix another typo.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2638 71f96598-fa45-0410-b640-bcd6f8691b32
Merge svn with dev-branch
Merge master with svn
Merge master with dev-branch