Test visual outputs
Add visual tests (top of list)
add json output; run tests
step json tests
new test examples
separate travis tests from manual suite tests
add some test logging
move suite-tests out of tests folder so that travis ignores them
fix tests - syntax errors
run suite for theme and size
run theme tests
rename images for easier viewing
Merge pull request #118 from ropensci/mc-visual-tests

Dump png's of ggplot2 and Plotly plots, json's and url's