Rename Rockbox Utility output binary to RockboxUtility.

This will also cause the archives created by deploy-release.py to use the new
binary name, so also update the update checking code to accept any base
filename when retrieving version numbers from the download server.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24980 a1c6a512-1295-4272-9138-f99709370657
4 files changed