bump version to 0.16
Merge pull request #1046 from batmanjs/bump-to-16

bump version to 0.16
Release v0.16.0
fixes View.isInDOM access in RenderCache
Merge pull request #1050 from mneudert/fix-render_cache-is_in_dom

fixes View.isInDOM access in RenderCache
try uninstall and reinstall snockets
try old version of travis-artifacts
check for TRAVIS_PULL_REQUEST
test for both, only reinstall snockets if pushing
Merge pull request #1053 from batmanjs/travis-upload

Try to get travis upload working again
Merge branch 'refs/heads/master' into url-params