Add build target to Makefile

[scabala]

Closes #2

Changelog:

• added separate build target to Makefile.
• modified install Makefile target to only copy files around

[otsaloma]

Also, two questions

1. What does this setup.py build/install split practically mean here? Because it seems to me that build only copies the files under the build directory and only once you run the install command, does it do some byte-compilation and egg creation. I'm just wondering if this setup.py build/install split makes some sense here?
2. Is it all right to have both setup.py and our Makefile commands write to the same build directory? I'm just checking that it doesn't disturb or confuse setup.py somehow?

[scabala]

1. Yes, indeed it does only copy files around. However, I would like to keep it separate. I don't know much about DEB side of the Force but in RPM land, I've seen spec files only with build and install calls to setup.py sepatated.
2. AFAIK, it does not. It has the benefit of having all build files in the same directory.

[otsaloma]

Thanks, I think this looks good now, merging.