Merge branch 'master' of https://github.com/derekprior/oh-my-zsh into derekprior-master

lib/directories.zsh

@@ -36,5 +36,9 @@ cd () {
 
 alias md='mkdir -p'
 alias rd=rmdir
-
 alias d='dirs -v'
+
+# mkdir & cd to it
+function mcd() { 
+  mkdir -p "$1" && cd "$1"; 
+}