- Add missing "var" declarations and noStrict flags
- Add strict mode tests for:
 - arguments-object/10.6-6-3 -> arguments-object/10.6-6-3-s
 - arguments-object/10.6-6-4 -> arguments-object/10.6-6-4-s
- Remove try-finally clean-up code
- Add strict mode compatible tests for eval-code/S10.4.2_A1.1_T*
  - No strict mode compatible files added for eval-code/S10.4.2_A1.2_T*, because it doesn't really make sense in this context.
  - (S10.4.2_A1.1 and S10.4.2_A1.2 should probably be removed, because the tested behaviour is not required by the spec.)
- Split S8.5_A10, S8.5_A4 and S8.1_A3 into declaration (both modes) and assignment tests (non-strict only)

Part of issue #35.

This commit normalizes the test case format used across test262. It applies the following transformations:

* Convert to YAML for frontmatter
* Remove of trailing whitespace
* Replace /r/n with /n except in chapters 6 and 7.
* Copyright header always uses // comments
* new includes attribute replaces $INCLUDE
* No implicit assumptions about test environment other than $ERROR. Everything else appears in the include array. This includes "runTestCase" which is now included in a substantial number of tests.

All Microsoft-contributed *.js and *.py sources now have Ecma's copyright header.

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.

source starting NOW, to test/suite.

assertTrue became assertTruthy. Canonical form of doc-comment attribute value source no longer have a leading colon and trailing semicolon. Any existing such are stripped during conversion.

style to append runTestCase(funcName); rather than
assertTrue(funcName.call(this)), giving the testing framework more
control.

- 12.14-7.js:  cleaned up
- 15.2.3.3:  89 test case additions
- 15.2.3.4:  29 test case additions
- 15.2.3.6:  1,076 test case additions and 15 minor test case fixes
- 15.2.3.9-1.js:  cleaned up
- 15.3.4.5-2-8.js:  cleaned up
- 15.4.4.14:  14 test case additions and 3 minor test case fixes
- 15.4.4.15:  9 test case additions and 3 minor test case fixes
- 15.4.4.17:  1 test case additions and 1 minor test case fix
- 15.4.4.18:  1 minor test case fix
- 15.4.4.19:  1 test case addition and 2 minor test case fixes
- 15.4.4.20:  3 minor test case fixes
- 15.4.4.21:  1 test case addition and 1 minor test case fix
- 15.4.4.22: 2 minor test case fixes
- 15.9.4.4: 2 minor test case fixes
- 15.9.5.43-0-2.js: minor test case fix

- external\contributions\: test contributions to Test262 from external entities such as Microsoft and Google.
                           This directory consists of the external tests without any modifications
- test\harness\:  test harness used to run Test262 tests.  Presently web-based
- test\suite\:    suite of vendor-neutral ECMAScript test cases conforming to the ES5 spec
- tools\:         among other things this includes a set of tools used to convert various external test
                  contributions to a format the Test262 test harness can consume
- website\:       an archived copy of the http://test262.ecmascript.org website