1. Allows nulls in the search interface. 2. Adds support for phrase queries in the sidebar (long overdue and needed by the API).
1. Allows nulls in the search interface.
2. Adds support for phrase queries in the sidebar (long overdue and
needed by the API).

brianwc/courtlistener,brianwc/courtlistener,wmbutler/courtlistener,wmbutler/courtlistener,shashi792/courtlistener,Andr3iC/courtlistener,shashi792/courtlistener,shashi792/courtlistener,voutilad/courtlistener,brianwc/courtlistener,shashi792/courtlistener,shashi792/courtlistener,brianwc/courtlistener,voutilad/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,wmbutler/courtlistener,Andr3iC/courtlistener,Andr3iC/courtlistener,voutilad/courtlistener,wmbutler/courtlistener,wmbutler/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,brianwc/courtlistener