Add a test for setting a notebook headline
Add a class to know when a evaluator is ready.
Update dill.js version to 0.2.x
Add notebook editing test coverage
Merge pull request #297 from twosigma/v0.54

V0.54
Merge pull request #279 from twosigma/sjs/notebook-tests

initial notebook tests
use apache commons CLI package to parse command line options, address Issue #274
merge
Make sure saving status message is cleared when saving failed
Merge remote-tracking branch 'origin/master' into dev-file-dialogs
Merge pull request #311 from twosigma/dev-file-dialogs

Make sure notebook saving status message is cleared