MNT: updated to work with modern matplotlib (no nxutils anymore)
MNT: fix self-referencial path
Merge pull request #2 from phobson/current-mpl

MNT: updated to work with modern matplotlib (no nxutils anymore)
small changes to grid and csa.  Premerge commit.
Fixed minor conflicts in merge.  In csa, removed nxutils import.  In grid using Paul Hobson's method to import the library.

Merge branch 'master' of https://github.com/hetland/pygridgen

Conflicts:
	pygridgen/csa.py
	pygridgen/grid.py
deleted svn stuff, and testing for gridgen library segfault