small maya adjustments, only warn on missing dependent target for val…

…ues in 'dep' key

add new 'ecoenv' flag to EcosystemDist function to enable overrides, …

…use OrderedDict when writing out a new ecosystem .env file to try to preserve a meaninfull order in keys

fix install to work with files generated by a builder

support inter SCons script target dependencies

add ecosystem distribution tool version directory as 'eco' target alias

return project dict in DeclareTargets, add GetTargetOutputFiles utili…

…ty function

update rpath for sharedlib and program

fix issue with -install_name and -soname link flags when project targ…

…et contains subfolders