Support basic Makefile syntax

[casperdcl]

• fix py26 unit test
• Monkey-patch setuptools or distutils to support python setup.py make
• 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