gene set summary progress (#2127)

* revert removal of cache control headers

* checkpoint work on revising summary route

* add summary query support to annoMatrix

* summarize route cleanup

* add mising file

* clean up summarize route

* add summary histogram

* update deps

* lint

* more lint

* lint

* manage crossfiler during gene set state changes

* remove obsolete debugging code

* correctly perform async watch in histogram

* better error handling

client/src/components/geneExpression/gene.js

@@ -53,12 +53,7 @@ class Gene extends React.Component {
 
   handleDeleteGeneFromSet = () => {
     const { dispatch, gene, geneset } = this.props;
-
-    dispatch({
-      type: "geneset: delete genes",
-      genesetName: geneset,
-      geneSymbols: [gene],
-    });
+    dispatch(actions.genesetDeleteGenes(geneset, [gene]));
   };
 
   render() {