Revert adding /usr/local/bin to path in zshenv

* Adding /usr/local/bin to path in `~/.zshenv` causes it to be in my path twice one right after the other. /usr/local/bin is already added to the path in the correct order on OSX Yosemite by the /etc/paths file. 

* Remove /usr/local/bin from path export in zshenv
Fix typo in zshenv path
adding locals
Adding silver searcher to vimrc and adding tmux conf
adding nerdtree
renaming vimrc.local and adding NERDtree bindings
adding pbcopy shortcuts
D:
increasing history size.
Merge branch 'master' of github.com:lexh/dotfiles