setup changes
future imports
Python 3.3: sunpy/util refactored

All tests passing in util
Comment out pyana for now as it doesn't work
Python3: Initial pass at map

Ran 2to3 but there is dep on sunpy/sun
Python3: sunpy/sun tests pass

also 2to3'ed time
first pass at net
Merge branch 'python3k' of github.com:Cadair/sunpy into py3