Fix mixed content issues
Merge pull request #251 from mathiasbynens/fix-mixed-content

Fix mixed content issues. Closes #249
Add iOS7/iOS8 results for ES6
Add Array.prototype.contains to ES7 table.
Updated WebKit and IE results

WebKit now supports the ES6 Number constants and some String methods.

This also closes #245.
Merge pull request #254 from ziyunfei/Array#contains

Add Array.prototype.contains to ES7 table.
Merge pull request #255 from webbedspace/webkit

Updated WebKit and IE results
Add Chrome 39 results
Add iOS 7/8 to ES5 table
Merge from upstream
Build html files
Fill ES7 with FF33,34,35 results; Add iOS7/8
Fix header on smaller screens
Cleaned up master.css a bit

This also changes some of the colours for the headers in each page, to
make each of them visually distinct (previously, only the non-standard
page had different header colours).

Also, it changes the "No" colour on the non-standard page from red to
blue. The reasoning is that since the features conform to no ES
standard, the judgmental, hostile red of the other pages is
inappropriate here, and a more neutral, yet distinct, shade is required.

Also removed the user-agent tooltip <script> from the non-standard
table, as it was interfering with the DOM structure expected by some of
the CSS, and didn't really contribute much.