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: documentation
ADDDED: --pack-dir to set FTB installation directory

 * Added program name for --help
Merge pull request #854 from jikuja/fixes_for_v1.4.4

Fixes for v1.4.4