Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/Net/testsuite/Makefile

@@ -0,0 +1,41 @@
+#
+# Makefile
+#
+# Makefile for Poco Net testsuite
+#
+
+include $(POCO_BASE)/build/rules/global
+
+objects = \
+	DNSTest HTTPServerTestSuite MulticastSocketTest SocketStreamTest \
+	DatagramSocketTest HTTPStreamFactoryTest MultipartReaderTest SocketTest \
+	Driver HTTPTestServer MultipartWriterTest SocketsTestSuite \
+	EchoServer HTTPTestSuite NameValueCollectionTest TCPServerTest \
+	HTTPClientSessionTest IPAddressTest NetCoreTestSuite TCPServerTestSuite \
+	HTTPRequestTest MessageHeaderTest NetTestSuite UDPEchoServer \
+	HTTPResponseTest MessagesTestSuite NetworkInterfaceTest \
+	HTTPServerTest MulticastEchoServer SocketAddressTest \
+	HTTPCookieTest HTTPCredentialsTest HTMLFormTest HTMLTestSuite \
+	MediaTypeTest QuotedPrintableTest DialogSocketTest \
+	HTTPClientTestSuite FTPClientTestSuite FTPClientSessionTest \
+	FTPStreamFactoryTest DialogServer \
+	SocketReactorTest ReactorTestSuite \
+	MailTestSuite MailMessageTest MailStreamTest \
+	SMTPClientSessionTest POP3ClientSessionTest \
+	RawSocketTest ICMPClientTest ICMPSocketTest ICMPClientTestSuite \
+	NTPClientTest NTPClientTestSuite \
+	WebSocketTest WebSocketTestSuite \
+	SyslogTest \
+	OAuth10CredentialsTest OAuth20CredentialsTest OAuthTestSuite \
+	PollSetTest UDPServerTest UDPServerTestSuite \
+	NTLMCredentialsTest
+
+target         = testrunner
+target_version = 1
+target_libs    = PocoNet PocoFoundation CppUnit
+
+include $(POCO_BASE)/build/rules/exec
+
+ifdef POCO_UNBUNDLED
+        SYSLIBS += -lz
+endif