Second Release-
Now checks for duplicate galaxy entries and doesn't add or update anything if they are detected.
Support for hundreds of thousands of galaxies, instead of capped to 999
Few other bugs fixed

Initial Release-

Automatically updates the galaxy.manifest file.

Not much to this, it needs to be located in the Entrenchment directory, so if you're
going to use it from the command-line or in a batch file, make sure it's copied to
the Entrenchment directory first.

Usage:
mapinstall galaxyname 
 or
mapinstall "galaxy name with spaces"


Note: Galaxies installed still have to be manually uninstalled if you want them removed. 


Other than that... Im a neophyte programmer blah blah blah no responsibility for violence, mayhem, carnage,
nuclear genocide, loss of data, blah blah blah. This has only been tested on Windows XP X64, but
I don't see any reason it shouldn't run on any flavor of Windows NT/2000/XP/Vista.