very minor alterations
merge PeelOffPhotonPackage into PhotonPackage and cleanup interface
Pass DustGridPath as a pointer rather than returning it
include DustGridPath into PhotonPackage so it can be reused
merge DustSystemPath into DustGridPath
combine DustGridPath path data into single vector (slightly faster)
use templates and call-back for optical depth calculations
remove unused min/maxSize attributes from Zubko*GrainSizeDistribution
add SingleGrainSizeDistribution
use home-relative rather than absolute path for qhelpgenerator
Trust2Geometry and Trust6Geometry added. Units and instruments have been changed so that SEDs now typically have Fnu in Jy as standard output (rather than lambdaFlambda in W/m2) and images are typically in MJy/sr.
Trust2Geometry and Trust6Geometry added. Units and instruments have been changed so that SEDs now typically have Fnu in Jy as standard output (rather than lambdaFlambda in W/m2) and images are typically in MJy/sr.
Revert "Trust2Geometry and Trust6Geometry added. Units and instruments have been changed so that SEDs now typically have Fnu in Jy as standard output (rather than lambdaFlambda in W/m2) and images are typically in MJy/sr."

This reverts commit 1c65eb0c6fc6f81198ed0f357532afcd92a65b58.
Revert "Trust2Geometry and Trust6Geometry added. Units and instruments have been changed so that SEDs now typically have Fnu in Jy as standard output (rather than lambdaFlambda in W/m2) and images are typically in MJy/sr."

This reverts commit 989895ecddcc5f6ada0aba437c5dca5b0217d59b.
add Trust2 amd Trust6 geometries
add options for flux output style (wavelength,frequency) and list units in SED data files
add spherical hole geometry decorator
allow MultiFrameInstrument to output a seperate file for each stellar component
replace approximation for expm1 by std c++11 function
add continuous scattering (as an option)