Use require_relative instead of require

'require' commands have been replaced by 'require_relative' in order
that these scripts work regardless of the current working directory,
and in newer versions of ruby.
Add tests to check that Kaltura and Scald are correctly set up

New files in pages define the parts of the kalturaserver and scald
contexts configuration screens that need to be checked upon a
correct distro install.  The checks are added to driveconfig.rb
since they need to be done while logged in as the admin user.