Updates podspec before 0.8 release

Carlos.podspec

@@ -7,15 +7,15 @@
 
 Pod::Spec.new do |s|
   s.name             = "Carlos"
-  s.version          = "0.7"
+  s.version          = "0.8"
   s.summary          = "A simple but flexible cache."
   s.description      = <<-DESC
 			Carlos is a small set of classes convenience operators to realize custom, flexible and powerful cache layers in your iOS, watchOS 2, tvOS and Mac OS X applications.
                        DESC
   s.homepage         = "https://github.com/WeltN24/Carlos"
   s.license          = 'MIT'
   s.author           = { "Vittorio Monaco" => "vittorio.monaco1@gmail.com" }
-  s.source           = { :git => "https://github.com/WeltN24/Carlos.git", :tag => 'Carlos-' + s.version.to_s }
+  s.source           = { :git => "https://github.com/WeltN24/Carlos.git", :tag => s.version.to_s }
 
   s.ios.platform = :ios, "9.0"
   s.osx.platform = :osx, "10.10"
@@ -29,7 +29,7 @@ Pod::Spec.new do |s|
 
   s.requires_arc = true
 
-  s.dependency 'PiedPiper', '~> 0.7'
+  s.dependency 'PiedPiper', '~> 0.8'
 
   s.ios.source_files = 'Carlos/*.swift', 'Carlos/NSKeyedUnarchiver+SwiftUtilities.{h,m}'
   s.watchos.source_files = 'Carlos/*.swift', 'Carlos/NSKeyedUnarchiver+SwiftUtilities.{h,m}'