point build status icon at the develop branch
Merge branch 'develop'

Pulls in CF10b1 changes from develop to master.  CF10b1 represents a beta
version of createflowpaths that includes support for generating separate
surface and sub-surface flow tables.  If a roof layer is present, a surface
flow table will be generated to allow non-topographic routing of rooftops.
The sub-surface routing table is identical to the single CF9 flow table.
If no roof layer is specified, the previous CF9 behavior is maintained.
Changed RHESSys code name to rhessys5.16.r1 to reflect parameter reading changes
upgraded to 5.16
Merge branch 'master' into develop