Corrected some Traceur results.

Traceur does not actually support these things:
 * Number() support for octal/binary
 * WeakMap/WeakSet deletion methods
 * BLFD
 * String HTML methods
 * RegExp#compile

It does, however, support some Symbol stuff (including Symbol.iterator).

Also fixed one EJS result.
extra tests for `Map`, see data-es6.js
traceur and e6to5+polyfill data
Merge pull request #313 from webbedspace/gh-pages

Changed the browser feature tally to a percentage
Merge pull request #311 from webbedspace/traceur-update

Corrected some Traceur results
Merge pull request #314 from Yaffle/gh-pages

extra tests for `Map`, see data-es6.js