Warzone 2100 2.0.7 - Linux file

This release doesn't bring many stunning new features and is mainly intended to fix several remaining crashes and add a few config options for convenience. This is the Linux installer, even though its filename is .exe! Summary of changes: Access to the new Lobbyserver (When joining a game, leave the IP field empty to get a list of available games) Screenshots are now saved as PNGs for better quality Configurable framerate limit (eg. for laptop users) Linux AutoPackage should work better Crash and security fixes