Merge pull request #182 from NikolaySuslov/development

fix path to locales after cleanup changes
initial support for upload to 3dr proxy
add setting to control stereo rendering offset point
fix side panel resize functions
merge up development
add first support for 3d model upload. Clean up a bit. Add new asset type to support loading mesh as THREEjs buffergeometry to save memory. Not many downsides to this - maybe load all assets this way?
cherrypick 88fdb85
cherrypick 1901335
 cherry-pick ef727e7
cherrypick bd36369
cherrypick 7c070d7
Fix for dynamic appPath
Fix for appPath
Fixes for appPath
remove hanging comma in package.json