prepare sending of plot requests

- values for query and date range were not
  propagated to the model

pdb-js/src/app/query-autocomplete/query-autocomplete.component.html

@@ -2,16 +2,16 @@
   type="text"
   id="query-autocomplete-input"
   placeholder="Query" 
-  [formControl]="query"
-  [matAutocomplete]="auto" 
+  [formControl]="queryField"
+  [matAutocomplete]="auto"
   (keyup)="onKey($event)"
-  (focus)="onKey($event)"/>
+  (mouseup)="onKey($event)"/>
 <mat-autocomplete 
   #auto="matAutocomplete" 
   [displayWith]="displaySuggestion"
   >
-    <mat-option *ngFor="let suggestion of filteredSuggestions | async" 
-      [value]="suggestion">
-      {{suggestion.value}}
-    </mat-option>
-  </mat-autocomplete>
+  <mat-option *ngFor="let suggestion of filteredSuggestions | async" 
+    [value]="suggestion">
+    {{suggestion.value}}
+  </mat-option>
+</mat-autocomplete>