quick-fix (no need for feature branch / pull request): SMIL Media Overlays parsing now degrades gracefully when duration metadata is missing or erroneous (edge case with some test EPUBs). Fixes https://github.com/readium/SDKLauncher-iOS/issues/35
quick fix: added missing console message forwarding for when readium-sdk errors are raised (EPUB parsing, exceptions, etc.) This error handler should be implemented in all native launchers, otherwise the console remains silent when testing erroneous EPUBs.

See: https://github.com/readium/SDKLauncher-OSX/commit/3de14b9c7f3654c2cd7aeda977cc82b1003fb496
Merge branch 'develop' into feature/htmlInject