MAINT: TODO before 2.0 release

[jakevdp]

• top-level methods

  • mark_*
  • hconcat, vconcat, layer, and associated operator overloading
  • configure_*
  • add_selection
  • resolve
  • add_layer, add_honcat, add_vconcat
  • add_transform (plus add_transform_filter, etc.?)
  • savechart method, with outputs to html, json, png, eps
  • from_dict, delegating to alt.Root.from_dict if necessary

• remove default width/height from charts? (Remove default width/height from Chart? #482) use config.view.width/height instead

• finalize selection API (Interval selection #463)

• Should we continue with the expr stuff? I'm ambivalent... it might be better to make users think about transforms directly, particularly in the context of compound charts. Decision: keep limited expr interface

• top-level wrapper for RepeatSpec? done in ENH: add RepeatChart & example #533

• Raise useful error when repeating, layering, hconcating, vconcating charts that are invalid.

• Make certain error messages are useful (More readable error messages #480)

• Make certain that object introspection is as useful as possible (e.g. AnyOf definitions)

• sphinx documentation see WIP: Build Infrastructure for Sphinx Docs #552)

  • update altair-plot directive to work with version 2.0
  • new tutorials for layers & selections
  • incorporate altair-plot into ipython directive? best approach would involve factoring-out mpl stuff and making display pluggable.
  • clear info on display troubleshooting (now at https://altair-viz.github.io/user_guide/troubleshooting.html)

• Examples

  • update example notebooks
  • Make sure that formatting is consistent
  • Make sure that methods are being used instead of attributes
  • Load all non-local datasets by URL done in Nonlocal URL Fix #537

• Restore settings in .travis.yml (see Fix travis #458)

  • test install with conda
  • test with py2.7
  • restore --doctest-modules flag
  • restore documentation build test (complicated by dependency on chromedriver)