Include gitconfig.local file for personal changes

* assumes same directory existance
* allows for easier addition of personal configs
my changes to zlogin and ignoring my git configuration settings
allow to jump to the beginning of the line
added nerdtree to vim
reverted some changes to gitignore file and made adjustments to readme
pretty obvious I got it from thoughtbot
added personalized configuration
Merge branch 'master' of github.com:jeffects/dotfiles