darwin tweaks
only alias to ack-grep on linux
added a pager for mysql commands
Merge branch 'master' of github.com:matmalone/dotfiles

* 'master' of github.com:matmalone/dotfiles:
  only alias to ack-grep on linux
  darwin tweaks
Merge branch 'master' into datacare

* master:
  added a pager for mysql commands
  only alias to ack-grep on linux
  darwin tweaks