Bug 888657 - Background color is cut off when I horizontal scroll
Bug 831987 - Enable 15 years template for Polish

* Add email address for contact form
* Add localized banner and CSS fixes for slides 6 and 13
* Add Polish to 15 years template array
Links on Firefox nightly first run has insufficient contrast bug 871756
Merge pull request #1019 from alexgibson/links-firefox-nightly-first-run-insufficient-contrast-bug-871756

Links on Firefox nightly first run has insufficient contrast bug 871756
Merge pull request #1017 from flodolo/bug831987_enablepl

Bug 831987 - Enable 15 years template for Polish
Merge pull request #1003 from kyoshino/bug-888657-background

Bug 888657 - Background color is cut off when I horizontal scroll