Allow browser caching of most assets

[jeremyfelt]

As much as possible, we should set some kind of max age header on maps assets so that browsers can cache them. A few are specific to wsu.edu, but I'm guessing all would benefit.

https://beta.maps.wsu.edu/public/get_places.castle?callback=jQuery1112005388054554350674_1438126748014&ids[]=%20%20601,%20603,%20604,%20605,%20606,%20607,%20608,%20609,%20610,%20611,%20612,%20613,%20614,%20615,%20616,%20617,%20618,%20619,%20620,%20621,%20622,%20623,%20624,%20625,%20626,%20627,%20628,%20629,%20630,%20631,%20632,%20633,%20634,%20635,%20637,%20638,%20639,%20640,%20641,%20642,%20643,%20644,%20645,%20646,%20647,%20648,%20649,%20650,%20651,%20652,%20653,%20654,%20655,%20656,%20657,%20658,%20659,%20660,%20661,%20662,%20663,%20664,%20665,%20666,%20667&_=1438126748015
https://beta.maps.wsu.edu/public/getShapesJson_byIds.castle?callback=jQuery1112005388054554350674_1438126748012&ids[]=%20&_=1438126748013
https://beta.maps.wsu.edu/public/markerSVG.castle?idx=
https://beta.maps.wsu.edu/public/coug_marker.castle
https://beta.maps.wsu.edu/content/dis/js/maps.wsu.edu.js
https://beta.maps.wsu.edu/embed/wsu-home
https://beta.maps.wsu.edu/content/dis/css/map.view.styles.css

[quantumJLBass]

• [ ] check all output not just these items in public.cs

Note many items may be server level changes and nothing really to do with the app it's self, but correct where possible.