Some methods in the SCM class should be implemented in the CC SCM classes to better support
Hudson

• FilePath getModuleRoot(FilePath workspace) Gets the top directory of the checked out
  module.
• FilePath[] getModuleRoots(FilePath workspace) Gets the top directories of all the
  checked out modules.
• boolean requiresWorkspaceForPolling() Returns true if this SCM requires a checked out
  workspace for doing polling.

Maybe (needs investigation):
RepositoryBrowser getEffectiveBrowser() Returns the applicable RepositoryBrowser for
files controlled by this SCM.