limit searching to "common" fields that are indexed.include checkbox to search all fields.see bug #3174
handle special case for searching both SANParks and SAEON (but not all of KNB)
initial commit of skin for SAEON look and feel. looks pretty good, but there are still a few things that need tweaking (colors).also want to add a standalone login page to match with the header line (perhaps).tracked in bugzilla #3007