Merge branch 'hotfix-4.5.1'
Update README.md

Updated links.
Merge branch 'release-4.6'
Update README.md
Changes order in which asset data is overwritten.

When extending an assetdata or assetmesh, the data linked via
"includes" will override the data of the original entry.
Adapted asset pick filter to support filtering via classNames + test.
blacklist renderer "Internet Explorer" (weird breakage)
change unsupported browser error to reference GitHub wiki
clean up semicolons as suggested by WebStorm
remove unused function parameters
simplify array instanciations
remove duplicate var
remove unused variable
add mimetype "model/vnd.xml3d.model+xml"
Merge remote-tracking branch 'origin/instance-improved' into develop
Merge branch 'asset-server-mimetypes' into develop
Merge branch 'ie11-unsupported-check' into develop
Merge branch 'reference-github-in-unsupported-message' into develop