Adding help support.
check to make sure we have any help before creating the command.
Updating help regex to make sure it's the first word in the line.
updating generic help text.

'[botname] help' no longer works, just 'help'
Updating help commands to work only when prepended with the bot name.

Help is now [botname] help
Plugin help can be triggered with [botname] help [plugin]
Updating comments and removing console.log's
Merge pull request #5 from sirkitree/master

Core help command