Added HandlerSocket plugin

- Fixed compiler errors
- Modified Makefiles to be part of plugin directory
- Some minor changes in database.cpp to use the new MariaDB handler interface

plugin/handler_socket/libhsclient/Makefile.am

@@ -0,0 +1,13 @@
+CXXFLAGS += -fimplicit-templates
+instdir = $(includedir)/handlersocket
+# TODO: these headers should be in dena/
+inst_HEADERS = allocator.hpp config.hpp mutex.hpp string_util.hpp \
+	auto_addrinfo.hpp escape.hpp socket.hpp thread.hpp auto_file.hpp \
+	fatal.hpp string_buffer.hpp util.hpp auto_ptrcontainer.hpp \
+	hstcpcli.hpp string_ref.hpp 
+lib_LTLIBRARIES = libhsclient.la
+libhsclient_la_SOURCES = config.cpp escape.cpp fatal.cpp hstcpcli.cpp \
+	socket.cpp string_util.cpp
+#libhsclient_la_LDFLAGS = -static
+libhsclient_la_CFLAGS = $(AM_CFLAGS) 
+libhsclient_la_CXXFLAGS = $(AM_CFLAGS)