Fix "dub dustmite" with versioned dependencies.
Fix "dub dustmite" with versioned dependencies.

All packages copied to the dustmite destination folder now get their package description overwritten with the "version" field explicitly set. This fixes packages that have been GIT cloned locally, where the version is determined from the git tags.
rjframe/dub,nazriel/dub,gedaiu/dub,Abscissa/dub-data-mod,D-Programming-Language/dub,jeanbaptistelab/dub,jelmansouri/dub,xentec/dub,schuetzm/dub,y12uc231/dub,Geod24/dub,grogancolin/dub,p0nce/dub,Abscissa/dub,dreamsxin/dub,Flamaros/dub,alexeibs/dub