Disable -Xlint for scalac.  Too many 'Adapting argument list by creating a 2-tuple' warnings.
Update to 2.10.1-RC1

Needed an explicit type in PMap to workaround an error.
Need to drop tuple assignment of parser.parsed in input task macro as a workaround
  for macro/resetAllAttrs/pattern matching/annotation issue in RC1.
Docs: remove spurious dollar sign in manual unix script
outputStrategy does not apply to test tasks
remove deprecated scaladocOptions
-Ymacro-no-expand for API docs
Docs: syntax fixes