Add autoloading all commands/sub-commands feature
Remove debug code
Use programName instead in default HelpCommand
Bug fixes: missing parameter for CommandBaseException::__constructor()
Separate CommandBase::autoloadCommands() for flexibility
Modification due to review
Add commandAutoloadEnabled property in Application
Bug fixes: use foreach to replace array_walk
Remove path property in CommandAutoloader, and fix extension removal
Merge pull request #49 from dh3014/master

Command autoloading feature