MEX: use cell array of strings as input for "source_model"
MEX: add gain factor to interface
Merge branch 'mexinterface' into master
Add overwrite feature for convolver and extend unit test
add delay with block crossover to binaural renderer
apply delay for plane waves in binaural renderer
re-define delay for plane waves
add functionality to correct delay
remove weird "-90" deg behaviour of brsrenderer