Spiceypy

Added
- added python3.6 builds

Fixed
- fixed formatting on changelog
- fixed issues with rtd builds

Changed
- version updated
- converted all downloads to use https

Added
- wrapper functions and tests for fovray, fovtrg, pxfrm2, occult 158
- wrapper functions and tests for spklef, spkopa, spkpds, spksub, spkuds, spkuef 155
- tests for srxpt and sincpt 154
- a bunch of other tests for CK related functions
- example added to docs
- automated artifact deployments (mostly) to pypi and conda cloud

Fixed
- improved use of six api to have better spicecells

Changed
- Start versioning based on the current English version at 0.3.0 to help
- refactored tests to be cleaner with kernel files
- fixed spice toolkit version to N65 pending new toolkit release.

Added
- DOI citation information

Changed
- updated versions for pytest, coverage, coveralls
- README updates

Added
- python wheel builds in appveyor 117
- wrapper for gfilum function

Changed
- converted README to rst format

Fixed
- inconsistencies in doc strings 143
- issue 136

Got to a semi complete api here, lots of commits
before things so this version can be considered a bit of a baseline

Added
- many things

Changed
- the game

Deprecated
- nothing important

Removed
- what had to go

Fixed
- it