Update em-warden-client deps

Bump rspec

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>

em-warden-client/em-warden-client.gemspec

@@ -20,5 +20,5 @@ Gem::Specification.new do |gem|
   gem.add_dependency('warden-client')
 
   gem.add_development_dependency('rake')
-  gem.add_development_dependency('rspec', "~> 2.11.0")
+  gem.add_development_dependency('rspec', "~> 3.0")
 end

em-warden-client/spec/fiber_aware_client_spec.rb

@@ -12,7 +12,7 @@
           client = server.create_fiber_aware_client
           Fiber.new do
             client.connect
-            client.connected?.should be_true
+            expect(client.connected?).to be true
             EM.stop
           end.resume
         end
@@ -40,9 +40,9 @@
           client = server.create_fiber_aware_client
           Fiber.new do
             client.connect
-            client.connected?.should be_true
+            expect(client.connected?).to be true
             client.disconnect
-            client.connected?.should be_false
+            expect(client.connected?).to be false
             EM.stop
           end.resume
         end
@@ -67,7 +67,7 @@
         expected_response = Warden::Protocol::EchoResponse.new(:message => "world")
 
         handler = double()
-        handler.should_receive(request.class.type_underscored).and_return(expected_response)
+        allow(handler).to receive(request.class.type_underscored).and_return(expected_response)
         server = MockWardenServer.new(handler, socket_path)
         actual_response = nil
 
@@ -81,15 +81,15 @@
           end.resume
         end
 
-        actual_response.should == expected_response
+        expect(actual_response).to eq(expected_response)
       end
 
       it "should raise error payloads" do
         request = Warden::Protocol::EchoRequest.new(:message => "hello world")
         expected_response = MockWardenServer::Error.new("test error")
 
         handler = double()
-        handler.should_receive(request.class.type_underscored).and_raise(expected_response)
+        allow(handler).to receive(request.class.type_underscored).and_raise(expected_response)
         server = MockWardenServer.new(handler, socket_path)
 
         em do
@@ -124,7 +124,7 @@
         response = Warden::Protocol::EchoResponse.new(:message => "world")
 
         handler = double()
-        handler.should_receive(request.class.type_underscored).and_return(response)
+        allow(handler).to receive(request.class.type_underscored).and_return(response)
         server = MockWardenServer.new(handler, socket_path)
         actual_response = nil
 
@@ -138,15 +138,15 @@
           end.resume
         end
 
-        actual_response.should == "world"
+        expect(actual_response).to eq("world")
       end
 
       it "should raise error payloads" do
         request = Warden::Protocol::EchoRequest.new(:message => "hello")
         response = MockWardenServer::Error.new("test error")
 
         handler = double()
-        handler.should_receive(request.class.type_underscored).and_raise(response)
+        allow(handler).to receive(request.class.type_underscored).and_raise(response)
         server = MockWardenServer.new(handler, socket_path)
 
         em do