MINOR MobileSiteControllerExtension::onAfterInit(): headers_sent() check for a nicer error when fullSite cookie can't be set
NEW Adding detection for Windows Phone OS to MobileBrowserDetector
API Allow declaring multiple domains

The MobileDomain and FullSiteDomain database columns now
accept a comma-separated list of values. This enables developers
to serve mobile content under multiple domains,
which is for example useful when used along the "subsites" module.
It is still recommended to have one canonical URL endpoint
for a unique content collection, though.

Conflicts:
	code/MobileSiteConfigExtension.php
FIX: resolve MobileSiteControllerExtension test failing
Added composer.json
is_tablet() detection, make it clearer how unreliable user agent device detection really is
Merge branch '0.5'

Conflicts:
	code/MobileBrowserDetector.php
	code/MobileSiteConfigExtension.php
	composer.json