Add legacy version QuickTime Player 7

This commit includes legacy QuickTime Player version 7.6.6.  The DMG
contains the string "SnowLeopard", but this binary is not specific to
Snow Leopard.  It runs on any OS X from Snow Leopard through Mavericks.
Merge pull request #34 from rolandwalker/quicktime-7

Add legacy version QuickTime Player 7