makefile and nosetests path fix. new contextsForStatement

Ignore-this: 424b0fa004ff5366b8035af42d9d9d0d

darcs-hash:20130115210103-312f9-48a5e9e897d3f47be7197691ba2b9fcbd3cf8730
just whitespace (hopefully)

Ignore-this: a364fab649d9e795f703cfe794f07ca6

darcs-hash:20130115210208-312f9-7459147819f95c1564349e89ae6e8c7239f42b43
ability to abort a registered drag action

Ignore-this: 281c88d9dc644c3d2ac59f5c1e67e75d

darcs-hash:20130115210450-312f9-e35080429a1e859e899f64edb7dc94180a8c2912
monkeypatch for rdflib that fixes a bug serializing floats

Ignore-this: 86a4069b2c3bd64938d25413a10854a4

darcs-hash:20130117035801-312f9-9cbe7efdf910c9d490e896682281daf9d4f66c67