SweetJS: Prevent server from crashing.
HTML: Update WebMarkupMin to version 0.9.3
Merge pull request #1506 from Taritsyn/master

HTML: Update WebMarkupMin to version 0.9.3
Merge pull request #1507 from am11/master

Bundle: Redirects exception messages to output
Merge pull request #1503 from am11/sweetjs

SweetJS: Prevent server from crashing
NodeServer: Report proxy errors. (#1510)