update vim & tmux, add mvimdiff as git mergetool
update mvim's clipboard-osx on tmux; add ack,easy-align for vim
add bpython config with light.theme
update tmux with dark bg
set the default window name as "fish" with window create only, remove this command when window split
update vim config with new plugin
add fish_title func and path of go,pyenv
update
Merge remote-tracking branch 'upstream/master'
merge upstream;customize vim