Fixed bug whereby shortwave broadband fluxes not output if no longwave calculations

Improved documentation of roof fluxes

Update additional files related to new RAMI-V scene versions to v0.8

Updated RAMI5 scene netCDF input files to version 0.8

Upgrade to 0.7.3

Upgraded documentation

Added namelist option vegetation_extinction_scaling

Minor optimizations of matrix-matrix and matrix-vector multiplications

Changed gfortran optimizations from -O3 to the faster(!) -O2 -march=native

Updated documentation to include new simple urban surface types

Added single_layer test case

Added longwave simple urban solver

Report timings and gprof option with make GPROF=1

Option to override surface type from namelist

Added shortwave SimpleUrban and InfiniteStreet tile types