Support basic Makefile syntax

[casperdcl]

• [ ] fix py26 unit test
• [ ] Monkey-patch setuptools or distutils to support python setup.py make
• [x] add basic support for substitution macros $(...)
• [ ] add basic support for complex commands echo hello | world.exe
• [ ] add basic support for inline dependencies target.o: source.cpp
• [ ] add basic support for checking timestamps of targets against dependencies
• [ ] add basic support for wildcards %.o: %.cpp, $^, $<

[casperdcl]

As an aside, we could also get a logo