Adding "+Available From Start:" to Medals.tbl.

Requested by MjnMixael.

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11196 387891d4-d844-0410-90c0-e4c51a9137d3
PAUSE ALL THE STREAMS

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11197 387891d4-d844-0410-90c0-e4c51a9137d3