Restore Podspec (#157)

R2Navigator.podspec

@@ -0,0 +1,19 @@
+Pod::Spec.new do |s|
+
+  s.name         = "R2Navigator"
+  s.version      = "2.0.0-beta.1"
+  s.license      = "BSD 3-Clause License"
+  s.summary      = "R2 Navigator"
+  s.homepage     = "http://readium.github.io"
+  s.author       = { "Aferdita Muriqi" => "[email protected]" }
+  s.source       = { :git => "https://github.com/readium/r2-navigator-swift.git", :branch => "develop" }
+  s.exclude_files = ["**/Info*.plist"]
+  s.requires_arc = true
+  s.resources    = ['r2-navigator-swift/Resources/**', 'r2-navigator-swift/EPUB/Resources/**']
+  s.source_files  = "r2-navigator-swift/**/*.{m,h,swift}"
+  s.platform     = :ios
+  s.ios.deployment_target = "10.0"
+  s.dependency 'R2Shared'
+  s.dependency 'SwiftSoup', '~> 2.3'
+
+end