Convert search form to a get form
Handle default values in advanced search field
Convert previous submit form to new method
remove dpm
cleanup submitted search codes method
Update test to handle get form
use $_REQUEST instead of $_GET
add tests for _bibdk_custom_search_get_advanced_values
implement hook_ting_openformat_conditions
rename file
Remove empty fields from submit url
use default values to expand advanced search
don't expand using the base query
Goto to #content
Merge branch 'feature/1367-search_get_method' into develop