- The changes in foamCleanPath introduced for issues (#1007, #1008)
  include quoted output of the cleaned environment variable.
  When used in foamCreateModuleInclude, the quotes make their way
  into the final environment. Avoid this by using the -sh-env
  eval format instead.

- add environment extraction of MANPATH changes

- support when creating modules for OpenFOAM.
  Original source from Ivan Spisso (CINECA) modified by OpenCFD

- unknown options or missing option values now emit a shorter message
  without the entire usage. This makes it easier to identify the errors
  and is better aligned with the behaviour of GNU system tools.

  ====
     $ simpleFoam -case
     Using: OpenFOAM-plus (see www.OpenFOAM.com)
     Build: plus-01234

     Error: option '-case' requires an argument

     See 'simpleFoam -help' for usage
  ====

- provide for reduced (-help) and full (-help-full) usage information.
  In many cases the reduced usage provided sufficient and easier
  to find the information.

- make -srcDoc an alias for -doc-source

- no warnings about option aliases for future dates.