install script updates

* fix logging and spacing issues
* update to use bash instead of zsh

install.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "Installing dotfiles"
 
@@ -8,18 +8,14 @@ git submodule update --init --recursive
 source install/link.sh
 
 if [ "$(uname)" == "Darwin" ]; then
-    echo "Running on OSX"
+    echo -e "\n\nRunning on OSX"
 
-    echo "Brewing all the things"
     source install/brew.sh
 
-    echo "Updating OSX settings"
     source install/osx.sh
 
-    echo "Installing node (from nvm)"
     source install/nvm.sh
 
-    echo "Configuring nginx"
     # create a backup of the original nginx.conf
     mv /usr/local/etc/nginx/nginx.conf /usr/local/etc/nginx/nginx.original
     ln -s ~/.dotfiles/nginx/nginx.conf /usr/local/etc/nginx/nginx.conf