Add messages and fix bad -t argument error

bin/update

@@ -1,6 +1,7 @@
-#!/bin/bash
+#!/bin/zsh
 
 # Homebrew #####################
+echo "\n* Updating homebrew"
 brew update
 brew upgrade
 
@@ -9,22 +10,26 @@ brew upgrade
 
 # Make sure rvm is sourced properly
 if [ -f ~/.rvm/scripts/rvm ]; then
-    [ "$(type -t rvm)" = "function" ] || source ~/.rvm/scripts/rvm
+    [[ "$(type rvm)" =~ "function$" ]] || source ~/.rvm/scripts/rvm
 fi
 
 # Update all rubies and rubygems
 for v in 1.9.3 1.8.7; do
+    echo "\n* Updating ruby $v"
     rvm use $v
     gem update --system
     gem update
 done
 
 # Update system ruby
+echo "\n* Updating system ruby"
 rvm use system
 sudo gem update --system
 sudo gem update
 
 
 # Vim ##########################
-echo "[NOTICE] Updating vim..."
+echo "\n* Updating vim..."
 vim +BundleInstall! +BundleClean! +q +q
+
+echo "\nDone!"