Updated to use $patch_rast for spatial extent of _stratum (instead of
$stratum_rast);  $stratum_rast is still used for the default_ID of the
_stratum
Merge branch 'develop'
- Fixed	parameter in veg_lawn_10cm so that lawn	is 10cm, instead of 1cm
- Added	veg_lawn_5cm type
- Changed writeParamFiles to writeParamFileForClass to reflect desired
functionality
- Fixed writeParamFileForClass to properly handle hierarchical classes
- Updated dumpParams.py for writeParamFileForClass