Update r2-shared-swift dependency

Author: mickael-menu

opds/Cartfile

@@ -1,2 +1,2 @@
-github "readium/r2-shared-swift" ~> 2.1.0
+github "readium/r2-shared-swift" "develop"
 github "cezheng/Fuzi" ~> 3.1.3

opds/Cartfile.resolved

@@ -1,4 +1,4 @@
 github "cezheng/Fuzi" "3.1.3"
 github "dexman/Minizip" "1.4.0"
-github "readium/r2-shared-swift" "2.1.0"
+github "readium/r2-shared-swift" "ce8792022235cbc731e6d6731968f3ceb04b7674"
 github "scinfu/SwiftSoup" "2.3.2"

opds/Package.resolved

@@ -19,7 +19,7 @@ let package = Package(
     ],
     dependencies: [
         .package(url: "https://github.com/cezheng/Fuzi.git", from: "3.1.3"),
-        .package(url: "https://github.com/readium/r2-shared-swift.git", from: "2.1.0"),
+        .package(url: "https://github.com/readium/r2-shared-swift.git", .branch("develop")),
     ],
     targets: [
         .target(

opds/Package.swift

@@ -6,7 +6,7 @@ Pod::Spec.new do |s|
   s.summary       = "Readium OPDS"
   s.homepage      = "http://readium.github.io"
   s.author        = { "Readium" => "contact@readium.org" }
-  s.source        = { :git => 'https://github.com/readium/r2-opds-swift.git', :tag => '2.1.0' }
+  s.source        = { :git => "https://github.com/readium/r2-opds-swift.git", :branch => 'develop' }
   s.exclude_files = ["**/Info*.plist"]
   s.requires_arc  = true
   s.resources     = ['readium-opds/Resources/**']