Version 1.1.6.

- Removed the grizzled.generator package, as it relies on the unsupported
  and unmaintained Scala continuations plugin.
- Changed grizzled.file.util.listRecursively() to use Scala Stream objects,
  which permit lazy evaluation. It's a better, and simpler, solution than
  continuation passing.
- Now cross-compiled for Scala 2.11.
- Published to Bintray.
- Updated to SBT 0.13.2