HTML5 browser build fixes for NFS over http.
Todo: Correctly generate html5 file when serving via NFS.
howto:
- flip relevant bools in UEBuildHTML5.cs
- build html5/cooker.
- run cook on the fly server via UFE.
- Remove .data/.data.js references from .html ( see todo)
- point browser at http://cookserver:DEFAULT_FILE_SERVING_PORT/gamename.html
#codereview peter.sauerbrei
[CL 2109950 by Ankit Khare in Main branch]