Use keywords for Vega map keys
Adds image-view to render BufferedImages.
Merge branch 'develop' of git://github.com/cldellow/gorilla-repl into pr/76
Merge PR 75, image viewing.
Update IDEA files for new dependency.
Add a CHANGELOG. Bump version number.
Fix headings.
Use alt as hotkey on Linux

Chrome appears to reserve Ctrl+G for find in page.

Fixes #77.
Merge pull request #80 from cldellow/develop

Use alt as hotkey on Linux
Basic viewer working.

Loads from GitHub repos and gists.
Much tweaking and adjusting.
Add GA code to viewer.
Tweaks to viewer wording. Update changelog.

And remove worksheets from core project.
Update to ignore worksheets.
Version bump for viewer deployment.
Uupdate changelog.
Fix bug with plots always showing zero.
Update changelog. Upgrade IDEA to 13.1.
Don't corrupt base64 encoded worksheets.

Fixes #100.
Stop tracking IDEA files.