Add submodule vim/bundle/google/maktaba @d14ece6

* vim/bundle/google/maktaba 0000000...d14ece6 (39):
  > Merge pull request #52 from google/safe_rtp
Update submodule oh-my-zsh eaff720...932de7f

* oh-my-zsh eaff720...932de7f (1):
  > Add `gsmav`: `gsma` for ~df/vim/bundles