SWTI2014/SWTI2014-Project-02 — pull request #74 by rs22 (2014-05-22 16:43:06+00:00)
Title: Use Promises to encapsulate download work

Fixes #39.
- Adds Squeak-Trunk back into build matrix, removes Squeak-4.4
- Integration Tests (relativeURLs and submitForm) require no Delay but wait directly for the background downloads to complete
- Replaces those Scamper methods that invoke background processes or that rely on such methods by methods returning a promise (e.g. jumpToAbsoluteUrl --> jumpToAbsoluteUrlAsync)
- If the sender wants to wait for the promise to complete or to attach a continuation, he can use the return value, otherwise ignore it