update submodules
Merge pull request #554 from pklingem/master

update submodules
add vim multiple cursors plugin
add vim-multiple-cursors to readme
Merge pull request #556 from acrogenesis/add-vim-multiple-cursors

add vim multiple cursors plugin
add vim-trailing-whitspace tool
remove KillWhitespace
use https instead of ssh
Merge pull request #560 from acrogenesis/vim-trailing-whitespace

add vim-trailing-whitspace tool
Add Liquid Lang Plugin
Merge pull request #563 from robertomiranda/add_liquid_lang

Add Liquid Lang Plugin
Revert "Merge pull request #556 from acrogenesis/add-vim-multiple-cursors"

This reverts commit 3b90b26278005e1efa176bb8d6ef573fc520ba04, reversing
changes made to 9aa9acdc175232abe70118d06e3593b31bf3e760.
Merge pull request #565 from pritambaral/redundant-multiple-cursors

Revert "Merge pull request #556 from acrogenesis/add-vim-multiple-cursors"
Add the README section back. ref #565
Update sumbodules
Fixed the usage of passing proxy setting to open-uri module. Using the
options can make sure it works. The old way, using the :proxy parameter
does not work in a proxy environment.
Merge pull request #566 from TonnyXu/master

Fixed the usage of passing proxy setting to open-uri module.
don't assume the presence of a proxy
Merge pull request #567 from lukfugl/master

don't assume the presence of a proxy
Add Rdoc Lang Plugin