Moved auth to before api, modified to system neutral "FileUtils.remov…

…e" function from POSX-only "rm" and to Dir.chdir from cd

install.rb

@@ -1,11 +1,20 @@
+require 'fileutils'
+
 version = ARGV.pop
 
-%w( core api auth dash promo sample ).each do |framework|
+%w( core auth api dash promo sample ).each do |framework|
   puts "Installing #{framework}..."
-  `cd #{framework} && gem build spree_#{framework}.gemspec && gem install spree_#{framework}-#{version}.gem --no-ri --no-rdoc && rm spree_#{framework}-#{version}.gem`
+
+  Dir.chdir(framework) do
+    `gem build spree_#{framework}.gemspec`
+    `gem install spree_#{framework}-#{version}.gem --no-ri --no-rdoc`
+    FileUtils.remove "spree_#{framework}-#{version}.gem"
+  end
+
 end
 
 puts "Installing Spree..."
-`gem build spree.gemspec`
-`gem install spree-#{version}.gem --no-ri --no-rdoc `
-`rm spree-#{version}.gem`
+  `gem build spree.gemspec`
+  `gem install spree-#{version}.gem --no-ri --no-rdoc `
+
+  FileUtils.remove "spree-#{version}.gem"