Folder#get_tree fetches less information

In most cases, people only want a full tree for basic file/folder
information. #get_tree now passes the "simple" flag by default,
dramatically speeding up situations where there are a lot of files.
The trade-off is that extended information like sha1 hashes must use a
seperate network request, but the vast majority of use cases will see a
dramatic speed improvement.

lib/box/folder.rb

@@ -105,18 +105,17 @@ def find(criteria)
     def force_cached_info
       create_sub_items(nil, Box::Folder)
       create_sub_items(nil, Box::File)
+
       super
     end
 
     # Consider the tree cached. This prevents an additional api
     # when we know the item is fully fetched.
     def force_cached_tree
       @cached_tree = true
-      force_cached_info
 
-      files.each do |file|
-        file.force_cached_info
-      end
+      create_sub_items(nil, Box::Folder)
+      create_sub_items(nil, Box::File)
 
       folders.each do |folder|
         folder.force_cached_tree
@@ -135,7 +134,7 @@ def get_info
     # Fetch the folder tree from the api.
     # @return [Hash] The folder tree.
     def get_tree
-      @api.get_account_tree(id)['tree']['folder']
+      @api.get_account_tree(id, 'simple')['tree']['folder']
     end
 
     # (see Item#clear_info)

spec/folder_spec.rb

@@ -77,8 +77,8 @@
           file.should be nil
         end
 
-        it "finds specified criteria" do
-          file = @root.find(:type => 'file', :sha1 => 'f7379ffe883fdc355fbe47e8a4b3073f21ac0f6d', :recursive => true).first
+        it "finds multiple criteria" do
+          file = @root.find(:type => 'file', :id => '61669270', :recursive => true).first
           file.id.should == '61669270'
           file.name.should == 'file.pdf'
         end
@@ -88,14 +88,8 @@
           file.should == nil
         end
 
-        it "finds multiple criteria" do
-          file = @root.find(:updated => 1304959908, :size => 20372, :recursive => true).first
-          file.id.should == '61679546'
-          file.name.should == 'expected.3.swf'
-        end
-
         it "requires both criteria" do
-          file = @root.find(:updated => 1304, :size => 20372, :recursive => true).first
+          file = @root.find(:id => 7068024, :name => "notswf", :recursive => true).first
           file.should be nil
         end
       end