Added minimal classical Makefile for cleaning common outputs

Makefile

@@ -0,0 +1,53 @@
+#
+# ZeroTier SDK - Network Virtualization Everywhere
+# Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+# 
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+# 
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+# 
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 
+#  --
+# 
+#  You can be released from the requirements of the license by purchasing
+#  a commercial license. Buying such a license is mandatory as soon as you
+#  develop commercial closed-source software that incorporates or links
+#  directly against ZeroTier software without disclosing the source code
+#  of your own application.
+# 
+
+# NOTE: This file only exists as a convenience for cleaning. To build, use 
+# CMake. Instructions are given in README.md
+
+.PHONY: install
+install:
+	mkdir -p $(DESTDIR)$(PREFIX)/lib
+	mkdir -p $(DESTDIR)$(PREFIX)/include
+	cp $(BUILDPATH)/$(STATIC_LIB) $(DESTDIR)$(PREFIX)/lib/
+	cp include/libzt.h $(DESTDIR)$(PREFIX)/include/
+
+.PHONY: uninstall
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/*.a
+	rm -f $(DESTDIR)$(PREFIX)/include/*.h
+
+##############################################################################
+## Misc                                                                     ##
+##############################################################################
+
+.PHONY: clean
+clean:
+	-rm rf bin build
+	-rm f *.o *.s *.exp *.lib .depend* *.core core
+	-rm -rf .depend
+	-find . -type f \( -name '*.a' -o -name '*.o' -o -name '*.so' -o -name \
+		'*.o.d' -o -name '*.out' -o -name '*.log' -o -name '*.dSYM' \) -delete	
+