Address Issue #7 (<https://github.com/klei-dev/dust/issues/7>)
by making kleiDust.loadTemplate use fs.readFileSync rather than
(the asynchronous) fs.readFile.

Add tests (and test templates) for Issue #7.
Merge pull request #8 from rodw/develop

Address Issue #7 by making kleiDust.loadTemplate use fs.readFileSync.