Make all provider headers private.

SimpleAuth.podspec

@@ -25,90 +25,107 @@ Pod::Spec.new do |s|
     ss.dependency 'cocoa-oauth'
     ss.frameworks = 'Accounts', 'Social'
     ss.source_files = 'Pod/Providers/Twitter'
+    ss.private_header_files = 'Pod/Providers/Twitter/*.h'
   end
 
   s.subspec 'Facebook' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.frameworks = 'Accounts', 'Social'
     ss.source_files = 'Pod/Providers/Facebook'
+    ss.private_header_files = 'Pod/Providers/Facebook/*.h'
   end
 
   s.subspec 'FacebookWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/FacebookWeb'
+    ss.private_header_files = 'Pod/Providers/FacebookWeb/*.h'
   end
 
   s.subspec 'Instagram' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/Instagram'
+    ss.private_header_files = 'Pod/Providers/Instagram/*.h'
   end
 
   s.subspec 'TwitterWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.dependency 'cocoa-oauth'
     ss.source_files = 'Pod/Providers/TwitterWeb'
+    ss.private_header_files = 'Pod/Providers/TwitterWeb/*.h'
   end
 
   s.subspec 'Meetup' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/Meetup'
+    ss.private_header_files = 'Pod/Providers/Meetup/*.h'
   end
 
   s.subspec 'Tumblr' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.dependency 'cocoa-oauth'
     ss.source_files = 'Pod/Providers/Tumblr'
+    ss.private_header_files = 'Pod/Providers/Tumblr/*.h'
   end
 
   s.subspec 'FoursquareWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/FoursquareWeb'
+    ss.private_header_files = 'Pod/Providers/FoursquareWeb/*.h'
   end
 
   s.subspec 'DropboxWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/DropboxWeb'
+    ss.private_header_files = 'Pod/Providers/DropboxWeb/*.h'
   end
 
   s.subspec 'LinkedInWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/LinkedIn'
+    ss.private_header_files = 'Pod/Providers/LinkedIn/*.h'
   end
 
   s.subspec 'SinaWeiboWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/SinaWeiboWeb'
+    ss.private_header_files = 'Pod/Providers/SinaWeiboWeb/*.h'
   end
 
   s.subspec 'GoogleWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/GoogleWeb'
+    ss.private_header_files = 'Pod/Providers/GoogleWeb/*.h'
   end
 
   s.subspec 'TripIt' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.dependency 'cocoa-oauth'
     ss.source_files = 'Pod/Providers/TripIt'
+    ss.private_header_files = 'Pod/Providers/TripIt/*.h'
   end
 
   s.subspec 'Trello' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/Trello'
+    ss.private_header_files = 'Pod/Providers/Trello/*.h'
   end
 
   s.subspec 'Strava' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/Strava'
+    ss.private_header_files = 'Pod/Providers/Strava/*.h'
   end
 
   s.subspec 'BoxWeb' do |ss|
-      ss.dependency 'SimpleAuth/Core'
-      ss.source_files = 'Pod/Providers/BoxWeb'
+    ss.dependency 'SimpleAuth/Core'
+    ss.source_files = 'Pod/Providers/BoxWeb'
+    ss.private_header_files = 'Pod/Providers/BoxWeb/*.h'
   end
 
   s.subspec 'OneDriveWeb' do |ss|
     ss.dependency 'SimpleAuth/Core'
     ss.source_files = 'Pod/Providers/OneDriveWeb'
+    ss.private_header_files = 'Pod/Providers/OneDriveWeb/*.h'
   end
 
 end