Add short blurb at start of guide
Fix install docs for anaconda 1.9
pyflakes
fixed XRTMap.__init__
class attrs were not accessed properly
added missing import for TRACEMap implementation
fixed NameError in instr.rhessi.get_obssumm_file
"fixed" MapCube.coalign

This *may* call the _coalign_diff method (if the passed argument is
``"diff"``) which raises NotImplementedError. Otherwise, ``None`` is
returned.
Fix lightcurve deata,header pair parsing
Add a RTD url warning to the home page.
Fix examples and tweak things
Typos and tweaks to HEK and VSO
Merge branch 'master' of https://github.com/sunpy/sunpy into docs_04
Merge pull request #827 from derdon/pyflakes

ran pyflakes over all *.py files of sunpy
Merge pull request #831 from derdon/mapcube

"fixed" MapCube.coalign
Merge pull request #830 from derdon/rhessi

fixed NameError in instr.rhessi.get_obssumm_file
Merge pull request #829 from derdon/map-trace

added missing import for TRACEMap implementation
Merge pull request #828 from derdon/hinode-fix

fixed XRTMap.__init__
Merge pull request #752 from derdon/dbtest-travis

fixed tests which causes trouble on travis
Add a Windows warning to io/ana.py
Merge pull request #835 from Cadair/docs_04

Docs 04