To improve vim's boot process move functions to autoload
Ack -s option suppress error messages, this way will not fill quickfix window with ack errors.
if ack is not installed finish script
This was causing a lot of problems, and can be done with `~/.ackrc`, so at least for now, we'll remove this feature. fixes #104
Check if the command is ack before set ack-only options. fixes #104
handle warning for conflicting arguments in ack 2.0