Integrate upstream changes from CL 1.9f

[dvalters]

Tom released some minor changes and bug fixes to CAESAR-Lisflood 1.9f. Should bring inline with HAIL-CAESAR code where possible/sensible

https://sourceforge.net/p/caesar-lisflood/wiki/Update%20Notes%20%28details%20of%20revisions%20in%20CL%20versions%29/#19f

1.9f

11/9/2018

Overview

• Minor changes to address a couple of bugs/errors that may have slowed the model down in catchment mode:
• Revised how total water inputted is calculated in catchment_water_input_and_hydrology - error that did lead to long time delays in some catchment simulations.
• Ln 5550 change of how max depth used in time step calc (will only effect very fine scale low water depth simulations)
• Change in density of sediment in Einstein equation (from 2250 to 2650)
• Various code tidying - including making sure all check buttons and options are now saved in the .xml config files.

Feature updates

1. Meyer-Peter-Muller sediment transport rule added as an option.
2. Different veg model option (details to follow)