Replace OpenSSL with PolarSSL

Works on windows, not yet cmake.

Externals/polarssl/Makefile

@@ -0,0 +1,63 @@
+
+DESTDIR=/usr/local
+PREFIX=polarssl_
+
+.SILENT:
+
+all:
+	cd library  && $(MAKE) all && cd ..
+	cd programs && $(MAKE) all && cd ..
+	cd tests    && $(MAKE) all && cd ..
+
+no_test:
+	cd library  && $(MAKE) all && cd ..
+	cd programs && $(MAKE) all && cd ..
+
+lib:
+	cd library  && $(MAKE) all && cd ..
+
+install:
+	mkdir -p $(DESTDIR)/include/polarssl
+	cp -r include/polarssl $(DESTDIR)/include
+	
+	mkdir -p $(DESTDIR)/lib
+	cp library/libpolarssl.* $(DESTDIR)/lib
+	
+	mkdir -p $(DESTDIR)/bin
+	for p in programs/*/* ; do              \
+	    if [ -x $$p ] && [ ! -d $$p ] ;     \
+	    then                                \
+	        f=$(PREFIX)`basename $$p` ;     \
+	        cp $$p $(DESTDIR)/bin/$$f ;     \
+	    fi                                  \
+	done
+
+uninstall:
+	rm -rf $(DESTDIR)/include/polarssl
+	rm -f $(DESTDIR)/lib/libpolarssl.*
+	
+	for p in programs/*/* ; do              \
+	    if [ -x $$p ] && [ ! -d $$p ] ;     \
+	    then                                \
+	        f=$(PREFIX)`basename $$p` ;     \
+	        rm -f $(DESTDIR)/bin/$$f ;      \
+	    fi                                  \
+	done
+
+clean:
+	cd library  && $(MAKE) clean && cd ..
+	cd programs && $(MAKE) clean && cd ..
+	cd tests    && $(MAKE) clean && cd ..
+
+check:
+	( cd tests && $(MAKE) check )
+
+apidoc:
+	mkdir -p apidoc
+	doxygen doxygen/polarssl.doxyfile
+
+apidoc_clean:
+	if [ -d apidoc ] ;			\
+	then				    	\
+		rm -rf apidoc ;			\
+	fi