FIXED: CheckInstallPath regex check

 * fixed coding error in regex

 * changed: CheckInstallPath: always print full error message string
   as debug message even if user has ignored warning/error
Command line argument fixes/additions

 * Removed -?, added -h
 * implemented --verbose
 * implemented -M
 * added --log-mc
 * added --no-console
ADDED: autolaunch pack

 * Partially removed selectedPack() dependency from ModPack to GUI pane
 * Added --auto-start
 * Fixed splash screen code to run code in checkDoneLoading only once
 * Changed: moved modpack/texturepack/map workers' loaded indicators into
   ModPack/TexturePack/Map classes from
 * Changed launch button enabling. Enable after modpack list is loaded.
   It really should check authlib andmodpacks load