[CocoaPods] Bumped version to 0.2.1 (should have been done on release).

Summary: Have to use 0.2.1 and not 0.2.0 because... this is a change.

Reviewers: randallli, featherless, #material_components_ios_owners

Reviewed By: featherless, #material_components_ios_owners

Projects: #material_components_ios

Differential Revision: http://codereview.cc/D139

Author: ajsecord

material-components-ios-catalog.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "material-components-ios-catalog"
-  s.version      = "0.1.0"
+  s.version      = "0.2.1"
   s.authors      = { 'Apple platform engineering at Google' => 'appleplatforms@google.com' }
   s.summary      = "A collection of stand-alone production-ready UI libraries focused on design details."
   s.homepage     = "https://github.com/google/material-components-ios"

material-components-ios.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "material-components-ios"
-  s.version      = "0.1.0"
+  s.version      = "0.2.1"
   s.authors      = { 'Apple platform engineering at Google' => 'appleplatforms@google.com' }
   s.summary      = "A collection of stand-alone production-ready UI libraries focused on design details."
   s.homepage     = "https://github.com/google/material-components-ios"