Revert "Using $this->http() to make http usage consistent"

This reverts commit 6ca58614f689c3ff9fe1252fd5f03d4e0440536c.
Contact Form: Fix success message.

Don't rely on label number prefix to find the correct field, as with multiple choice fields the numbers are not running from 1 to n, but there are gaps.
Merge pull request #1086 from Automattic/fix/contact-form-success-message

Contact Form: Fix success message.
Contact Form: Fix same labels in success message.

When two labels are identical, the success message used to show the value of the first label for both.
Contact Form: Ensure contact forms fit properly in text widgets.

Fixes #themes2665.

Merges r104666-wpcom.
Merge pull request #1089 from Automattic/add/com-merge

Contact Form: Ensure contact forms fit properly in text widgets.
Landing page module cards more accessible.

- Added tabindex to module cards
- Added keypress listener triggering modal show on enter
- Added styles on focus in addition to hover
Recompile Sass.
Merge pull request #1012 from Automattic/fix/landing-page-module-accessibility

Landing page module cards more accessible.
Add active class to active modules on landing page

See #1088 — just needs styling now.
Reorganized CSS

Moved `scss/`, `img/`, and `css/` to root
Combined `img/` with `images/' and moved `images/` to root
Fixed font links and `jetpack-icons.css` paths
Gigantic CSS reorg

Features
* Atomic modular layout
* nested media queries (more maintainable)
* requires Sass 3.3 or higher to compile
Combined `_page-modules.scss` into `_settings.scss`
Moved `_mixins` folder and adjusted font variables
Concatenates front-end module styles

* concatenates most front-end styles into `jetpack.css`
* cssjanus also runs on `jetpack.css` adding rtl styles
Refactored grunt and added icon subfolders

* Would like to move Genericons folder into icons (needs discussion)
Adjust files concatenated for jetpack.css
Added new grunt task: `grunt concatenate`

* Manually concatenates front-end modules into one file