Minor bug fixes.

lib/cocoapods/local_pod.rb

@@ -169,6 +169,7 @@ module Pod
     end
 
     def expanded_paths(patterns, options = {})
+      patterns = [ patterns ] if patterns.is_a? String
       patterns.map do |pattern|
         pattern = root + pattern
 

lib/cocoapods/platform.rb

@@ -10,7 +10,7 @@ module Pod
 
     attr_reader :deployment_target
 
-    def initialize(symbolic_name, deployment_target = nil)
+    def initialize(symbolic_name = nil, deployment_target = nil)
       @symbolic_name = symbolic_name
       if deployment_target
         version = deployment_target.is_a?(Hash) ? deployment_target[:deployment_target] : deployment_target # backwards compatibility from 0.6