[test-infra] Add new test type wdspec to manifest generator (#1094)

This patch adds a new test type, wdspec, short for WebDriver
specification tests to the manifest generator.

It also makes a number of improvements to tools/scripts/manifest.py.

View on GitHub: https://github.com/w3c/web-platform-tests/pull/1094

Received on Friday, 4 July 2014 18:02:32 UTC