Update project steno.js to v1.5.1
Update project underscore.js to 1.7.0
Merge pull request #1539 from jsdelivrbot/underscore.js/1.7.0

Update project underscore.js to 1.7.0
Merge pull request #1535 from jsdelivrbot/steno.js/v1.5.1

Update project steno.js to v1.5.1