Add Brian Oldfield as a contributor.
Fix __all__ to use strings

Also alphabetize all the import and __all__ list lines, now that some
of the lists of exported functions are getting long enough to be
harder to scan.

Alex Gaynor <alex.gaynor@gmail.com> caught this systematic mistake of
mine in code review.
Fixes #50
These are dependencies
Merge branch 'master' into swift