Document remaining 1.7.0 changes.
Merge remote-tracking branch 'akre/doc-updates'
fixes #1839: remove underscore-min.js from npm package
Merge pull request #1840 from michaelficarra/GH-1839

remove underscore-min.js from npm package
Revert "fixes #1839: remove underscore-min.js from npm package"

This reverts commit 19c47abd8a48fe76214adbcaed3345dea98128be.
Merge pull request #3 from jashkenas/master

Update from origin