"Open With" links in info panel are generated before entries are fully initialized

[knabar]

There is an issue (race condition?) where the info panel links are generated in

omero-figure/src/js/views/info_panel_view.js

Line 179 in 9cc36cd

OPEN_WITH.forEach(function(v){

before the entries in OPEN_WITH are initialized, in particular before they call setOpenWithUrlProvider at

omero-figure/src/js/views/util.js

Line 159 in 9cc36cd

OME.setOpenWithUrlProvider = function(id, fn) {

.

This causes the entry's getUrl to be still undefined, so an invalid link is generated.

Possibly related or impacted by #425