Removed submit method. Using system_settmgs_form instead
Added option to save faceted searches.
Added bibdk_searchhistory_settings.admin.inc to .info file
Added a check to identify if it is a faceted search and if we actually want to save faceted searches.
Cleanup
Added textinput field to set which search params we want to be able display in searchhistory
Added a method to check if the current param is wanted to display in the searchhistory