[CSS] Moved the base SASS for the positioning CSS out of the media queries to optimise the resulting CSS.
Bower: Updated to Bootstrap 3.1.0.
Partially addresses gh-4448.
Changed the message markup to use the Bootstrap panels component and removed the styles for the old message box
Merge pull request #4549 from EricDunsworth/v4.0-bower-bootstrap-3.1.0

Bower: Updated to Bootstrap 3.1.0.
Merge pull request #4481 from shawnthompson/archived

Changed the message markup to use the Bootstrap panels component
Docs: add session timeout documentation
Session: store updated plugin settings on element

This allows other code to access the element's complete
settings rather than just the overides.
Merge pull request #4552 from patheard/docs-session

Session timeout docs and change to plugin init
Datalist: Removed return false from input field event handler to address iOS7 issue
Merge pull request #4553 from pjackson28/removedreturnfalsedatalist

Datalist: Removed return false from input field event handler to address iOS7 issue
Disabled Bootstrap abbr title expansion for print in IE8 (fixes wet-boew/GCWeb#519)
Merge pull request #4561 from pjackson28/removebootstrapenhancementie8

Disabled Bootstrap abbr title expansion for print in IE8 (fixes GCWeb#510)
Merge pull request #4556 from thomasgohard/css-position-css-optimisation

[CSS] Moved the base SASS for the positioning CSS out of the media queries to optimise the resulting CSS.
Focus: Increased delay to allow time for top overlay to disappear before calculating the offset (fixes #4550)
Build: Disabled CSSLint check for number of floats (fixes #4559)
Merge pull request #4564 from pjackson28/fixtopoverlayfocus

Focus: Increased delay to allow time for top overlay to disappear before calculating the offset (fixes #4550)
Merge pull request #4566 from pjackson28/removecsslintfloatscheck

Build: Disabled CSSLint check for number of floats (fixes #4559)
Updated the placeholder content for v4.0 (related to #4567)
Merge pull request #4568 from pjackson28/updateplaceholdercontent

Updated the placeholder content for v4.0 (related to #4567)
Added links to the OGPL theme