new commands, updated gitconfig

+ e opens $EDITOR (thanks @holman)
+ h is same as 'c' but in home directory (thanks @holman)
+ updated gitconfig

bin/e

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if [ "$1" == "" ]; then
+  exec $EDITOR .
+else
+  exec $EDITOR $1
+fi

bin/subl

@@ -0,0 +1 @@
+/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl