casa6

Merge pull request #363 in CASA/casa6 from CAS-13089 to master

* commit '811da1a4a51503d1173c4ac952604c815a6c22fe': (84 commits)
  bug fix on parameter handling (humidity)
  minor log improvement
  Bug fix: interpret layerBoundary values in "m" rather than "km"
  fix for logging
  correct indentation
  remove unnecessary forward declarations and typedefs
  removed unnecessary empty lines
  fixed formatting issues (tab vs. space)
  bug fix on handling of altitude value
  synchronized casa5/6 code for convenience
  split proccessing steps in parse_spw into another functions
  refactoring: class/function definition reordering
  Deprecated global variable, 'origin'
  Refactoring parameter configuration code
  Refactoring
  separate standard and 3rd party modules
  Fix import order
  sort import statements in alphabetical order
  CAS-13089 sync casa5 script with casa6
  CAS-13089 minor refactoring
  ...