add sjl/t for todo tasks management
update powerline submodule
the Lokaltog/powerline pushed new commits again, and the python command
to init powerline for vim doesnt work. now, use source and bundle
instead
Merge branch 'dev'

* dev:
  the Lokaltog/powerline pushed new commits again, and the python command to init powerline for vim doesnt work. now, use source and bundle instead
  update powerline submodule
  add sjl/t for todo tasks management