Updates for 2.11.

Not all the way there, but most of it.
Got the scalaxy.fx tests passing.
Dropped an obsolete test. Expanded annotation reach.

If we can believe the tests, only these two subprojects fail.

[error] (scalaxy-generic/test:test) sbt.TestsFailedException: Tests unsuccessful
[error] (scalaxy-privacy-plugin/test:test) sbt.TestsFailedException: Tests unsuccessful
Merge pull request #12 from paulp/211

Updates for scala 2.11.