Add missing test module

The `is` test file was not included in test/index.html, and so its tests were
not run. This commit adds it.
package.json: alphabetize dependencies
Merge pull request #342 from davidchambers/dependencies

package.json: alphabetize dependencies
Merge pull request #341 from markprzepiora/run-is-test

Add missing test module
some little doc fixes
build test/index.html from template