Add more tests for IDBCursor advance
Improve and rename tests for IDBCursor advance

 - duplicate file name.
Improve tests for IDBCursor advance

 - split checkpoint into its own file.
Expand Event-propagation.html to catch a Gecko bug.
Rewrite Event-initEvent.html to avoid the explicit 't' variable.
Add somewhat more thorough testing for initEvent.
Test initEvent resetting the stop propagation flag.
Add tests for calling initEvent multiple times.
Moved code
Update to latest testharness.js
Merge pull request #826 from yunxiaoxie/yunxiaoxie/idbcursor-advance

Add more tests for IDBCursor advance
Wait for server to start when probing subdomains.
Merge pull request #916 from Ms2ger/events

Various improvements to events tests
Merge pull request #926 from w3c/jgraham/serve_probe_wait

Wait for server to start when probing subdomains.
Remove support for falling back to an external domain since it was rather broken.
Merge pull request #932 from w3c/jgraham/serve_no_fallback

Remove support for falling back to an external domain since it was rather broken.
Update to latest wptserve