Sunshine2 fails to scan for languages.

Running java -jar org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar transform -l deps/ -p . -n ... fails to find the languages in deps.

The error produced is:

15:50:07 ERROR - Error during command execution
org.metaborg.core.MetaborgException: No languages were discovered
	at org.metaborg.sunshine.common.LanguageLoader.discoverLanguages(LanguageLoader.java:48) ~[org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]
	at org.metaborg.sunshine.arguments.LanguagesDelegate.discoverLanguages(LanguagesDelegate.java:29) ~[org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]
	at org.metaborg.sunshine.command.local.LocalTransformCommand.run(LocalTransformCommand.java:35) ~[org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]
	at org.metaborg.sunshine.Runner.run(Runner.java:78) ~[org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]
	at org.metaborg.sunshine.Main.run(Main.java:27) [org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]
	at org.metaborg.sunshine.Main.main(Main.java:16) [org.metaborg.sunshine2-2.1.0-20161125.121050-1.jar:na]

Submitted by Vlad Vergu on 25 November 2016 at 14:50

This is solved by the new language discovery API.