Rename podspec back to SSZipArchive

This avoids conflict with the existing ZipArchive podspec by Matt Connolly

SSZipArchive.podspec

@@ -0,0 +1,15 @@
+Pod::Spec.new do |s|
+  s.name         = 'SSZipArchive'
+  s.version      = '0.3.3'
+  s.summary      = 'Utility class for zipping and unzipping files on iOS and Mac.'
+  s.description  = 'ZipArchive is a simple utility class for zipping and unzipping files on iOS and Mac.'
+  s.homepage     = 'https://github.com/ZipArchive/ZipArchive'
+  s.license      = { :type => 'MIT', :file => 'LICENSE.txt' }
+  s.author       = { 'Sam Soffes' => 'sam@soff.es' }
+  s.source       = { :git => 'https://github.com/ZipArchive/ZipArchive.git', :tag => "v#{s.version}" }
+  s.ios.deployment_target = '4.0'
+  s.osx.deployment_target = '10.6'
+  s.source_files = 'SSZipArchive/*', 'SSZipArchive/minizip/*'
+  s.library = 'z'
+  s.requires_arc = true
+end