Add podspec

Author: Stephanie Sharp

MaterialTextField.podspec

@@ -0,0 +1,15 @@
+Pod::Spec.new do |s|
+  s.name         = "MaterialTextField"
+  s.version      = "0.1"
+  s.summary      = "Material design UITextField with animated placeholder label and error message"
+  s.homepage     = "https://github.com/stephsharp/MaterialTextField"
+  s.license      = { :type => "MIT", :file => "LICENSE" }
+  s.author       = "Stephanie Sharp"
+  s.platform     = :ios, "8.0"
+  s.source       = { :git => "https://github.com/stephsharp/MaterialTextField.git", :tag => "v#{s.version}" }
+  s.source_files = "MaterialTextField"
+  s.public_header_files = [ "MaterialTextField/MaterialTextField.h", 
+                            "MaterialTextField/MFTextField.h", 
+                            "MaterialTextField/UIColor+MaterialTextField.h" ]
+  s.requires_arc = true
+end