Merge pull request #16 from zwf/master

添加cocoapods支持文件

MJRefresh.podspec

@@ -0,0 +1,14 @@
+Pod::Spec.new do |s|
+  s.name         = "MJRefresh"
+  s.version      = "1.0"
+  s.summary      = "The easiest way to use pull-to-refresh"
+  s.homepage     = "https://github.com/CoderMJLee/MJRefresh"
+  s.screenshots  = "http://code4app.qiniudn.com/photo/52326ce26803fabc46000000_18.gif"
+  s.license      = { :type => "MIT", :file => "LICENSE" }
+  s.authors      = { 'CoderMJLee' => '199109106@qq.com'}
+  s.platform     = :ios, "6.0"
+  s.source       = { :git => "https://github.com/CoderMJLee/MJRefresh.git", :branch => "master" }
+  s.source_files = "MJRefreshExample/MJRefreshExample/MJRefresh/*.{h,m}"
+  s.resource     = "MJRefreshExample/MJRefreshExample/MJRefresh/MJRefresh.bundle"
+  s.requires_arc = true
+end