This method is used by IRB
Return all files in this gem that match for glob.
Check state file is writable. Creates empty file if not present to ensure we can write to it.
Reads time of last update check from state file
Writes time of last update check to state file
Creates windows .bat files for easy running of commands
Creates the scripts to run the applications in the gem.
Creates the symlinks to run the applications in the gem. Moves the symlink if the gem being installed has a newer version.