Merge pull request #21 from nyeholt/master

BUGFIX Stop themes breaking when site hasn't been created
ADDED subclass of SearchForm to filter results by Site
Merge branch 'master' of github.com:sheadawson/silverstripe-multisites
MINOR fixed developer identifier field insertion
Allow editing of site title in settings screen.
Merge pull request #22 from drzax/settings-patch

Allow editing of site title in settings screen.
Force new pages to be created beneath a site
Merge pull request #24 from gheggie/master

New page creation fix
UPDATE Site Folders are now saved against the site, instead of relying on matching the Site's HostName to a folder.
Include the host name in static error page file names
Fix inconsistent coding style
Merge pull request #25 from ajshort/master

Error Page Generation + Coding Style
Merge branch 'master' of git://github.com/sheadawson/silverstripe-multisites
FIX Removed incorrectly added local cache of variable