S7.8.5_A3.1_T7 through S7.8.5_A3.1_T9 were invalid as written.  The only way to specify unicode flags
to literal regexp patterns is through eval and similar mechanisms (e.g., Function constructor).  Fixed.

All but two of the remaining disabled tests in excludelist.xml were disabled because the tests polluted
the global JS environment, not because the tests themselves were invalid.  This is no longer an issue as
of the latest test262 harness (actually it wasn't an issue about a year ago either).  Re-enabled.

Mark Miller removed this invalid test in Sputnik (see http://code.google.com/p/sputniktests/source/detail?r=93), and
I'm propagating that change to test262 now.

Also, two of this weren't actually this-related.  Fixed their separate issues.

S11.1.1_A2.js is invalid and there's no way to make it valid.  Removing.

valid.  Removing it as similar coverage already exists.

needs to be excluded.

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.