correct the load path for utils and alias
correct export env variables into fish
updated the color of the git branch in prompt
added local npm path into /Users/yangchenyun/.cabal/bin /usr/local/share/npm/bin /Users/yangchenyun/.rbenv/shims /Users/yangchenyun/.rbenv/bin /usr/local/sbin/ /usr/local/bin/ /Users/yangchenyun/bin /usr/bin /bin /usr/sbin /sbin /usr/local/Cellar/fishfish/lastest/bin /usr/X11R6/bin /usr/local/bin, change default mvim -v to mvim