77 new (mostly) strict mode tests plus the removal of one invalid test case.

Sputnik and IE Test Center tests now live side-by-side in ch* directories under test/suite.

when encoding to JSON which coincidentally preserves the BOM as well.
This shaved ~10 megs off of chapter15.json alone.

FindTestCaseIssues.py is a new helper script which can be used to detect issues with the format of test cases (e.g., runTestCase not being called).

FixPathsAndIds.py now preserves line endings and the BOM.

"caller" and "arguments" properties.

Laid down the groundwork for a console-based test runner.

I'd used "hg addremove"

source starting NOW, to test/suite.

external/contributions/Google/sputnik_conformance_modified.  This move
is not consistent by itself. Also need upcoming commit to convert.js.

Restore Error as a workaround.

contributions which have been modified (generally based on bug feedback).  Doing this
as we don't want to modify the original contribution.