With this change, any referenced analyzer project will be parsed by the
project system and the assemblies will be passed down to the compiler.
By default, the analyzer language is considered to be "cs". If another
language is used, the "languageID" option should be specified inside the
"analyzerOptions" section of the project.json file.
Resolves#83
1. Rebase on new LibraryExporter
2. Update dependency name to "fx/<name>" for reference assembly
3. Update framework friendly name
4. Fix dependency message regression
5. Update tests
