New aggregate-col fn to simpify QP tests a bit

add new :field->field option to sel macro

Add implicit fields clause to "rows" aggregation queries

fix annoying redirect to setup when developing

iterate over the icon, not the object when > 1 path

Fix issue where changing value of preview_display might not save

database details seem to require :password instead of :pass

fix setting the timezone in Native SQL queries 

use a single source of truth for icon paths

remove old qb component elements