Small edits on master -> develop (#644)
Small edits on master -> develop (#644)

* 1.5.5

* 1.5.6

* 1.5.7

* Remove development docs

hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass