Provides message when no search is performed.
Merge
Fix masthead paragraph margin from overflowing

Masthead paragraph was going under masthead image in
https://developer.mozilla.org/en-US/docs/Mozilla/Firefox_OS. This patch
fixes the behaviour.

Remove masthead paragraph right margin from tablets.

Before: http://i.imgur.com/p4AtXGu.png
After: http://i.imgur.com/XD0oMba.png

Signed-off-by: Kaustav Das Modak <kaustav.dasmodak@yahoo.co.in>
Merge branch 'master' into empty-search
Add a11y anchor links to allwo for a11y navigation
mime_types now behaves as wrapper for mimetypes.

mimetypes does not allow overwriting stored values (stored in
mimetypes.knownfiles). This wrapper allows us to define our own mappings and
fallback on mimetypes if mime type is not found.
Merge pull request #1477 from darkwing/empty-search

Provides message when no search is performed.
Merge pull request #1513 from kaustavdm/fix-masthead-paragraph

Fix masthead paragraph margin from overflowing
Merge pull request #1518 from darkwing/a11y-anchors

Add a11y anchor links to allwo for a11y navigation
fix bug 915314: Use preformatted styling for code in script warning messages
fix bug 927569 - Ensure right column has width when TOC becomes fixed
Merge pull request #1521 from darkwing/page-column-927569

fix bug 927569 - Ensure right column has width when TOC becomes fixed
Merge pull request #1520 from lmorchard/915314-kumascript-error-styling

fix bug 915314: Use preformatted styling for code in script warning messages
Merge pull request #1519 from nhenezi/mime_type-improvements

mime_types now behaves as wrapper for mimetypes.
Add big search box to search results page
Merge pull request #1523 from darkwing/search-page-box

Add big search box to search results page
Update Stylus stylesheets with CSS-like syntax

Braces, colons, and semicolons are added. Other refactoring is intentionally
omitted to keep the diff as straightforward as possible.
Merge pull request #1522 from openjck/stylus-css-syntax

Update Stylus stylesheets with CSS-like syntax
Fix main menu subheading font size on search results page
fix bug 928106 - Prevent double scrollbars on zone landing pages