Do not include unbuildable test suites in build plan.
Do not include unbuildable test suites in build plan.

Fixes Issue: #227.

ant1441/stack,Heather/stack,kairuku/stack,adinapoli/stack,fizruk/stack,rekka/stack,sjakobi/stack,harendra-kumar/stack,MaxGabriel/stack,tedkornish/stack,martin-kolinek/stack,chreekat/stack,robstewart57/stack,keent/stack,bollu/stack,athanclark/stack,rrnewton/stack,athanclark/stack,bixuanzju/stack,phadej/stack,k-bx/stack,chadbrewbaker/stack,k-bx/stack,rubik/stack,agrafix/stack,akhileshs/stack,anton-dessiatov/stack,mathhun/stack,MichielDerhaeg/stack,markus1189/stack,soenkehahn/stack,rrnewton/stack,meiersi-11ce/stack,duplode/stack,rvion/stack,meiersi-11ce/stack,juhp/stack,sjakobi/stack,cabrera/stack,mrkkrp/stack,rubik/stack,tedkornish/stack,martin-kolinek/stack,Andrew-the-Ubergeek/stack,mathhun/stack,bollu/stack,CRogers/stack,sinelaw/stack,wskplho/stack,vigoo/stack,wolftune/stack,Fuuzetsu/stack,MichielDerhaeg/stack,cocreature/stack,mrkkrp/stack,luigy/stack,Heather/stack,narrative/stack,wskplho/stack,deech/stack,kairuku/stack,keent/stack,AndrewRademacher/stack,lukexi/stack,AndreasPK/stack,akhileshs/stack,achernyak/stack,rvion/stack,AndreasPK/stack,AndrewRademacher/stack,anton-dessiatov/stack,MaxGabriel/stack,chreekat/stack,joozek78/stack,rekka/stack,ant1441/stack,chadbrewbaker/stack,Blaisorblade/stack,adinapoli/stack,Denommus/stack,Denommus/stack,harendra-kumar/stack,robstewart57/stack,lukexi/stack,DanielG/stack,juhp/stack,CRogers/stack,bixuanzju/stack,cabrera/stack,joozek78/stack,Andrew-the-Ubergeek/stack,markus1189/stack,vigoo/stack,hesselink/stack,soenkehahn/stack,Fuuzetsu/stack,agrafix/stack,supermario/stack,narrative/stack,DanielG/stack,phadej/stack,achernyak/stack,luigy/stack,supermario/stack,deech/stack,duplode/stack,Blaisorblade/stack,GaloisInc/stack,sinelaw/stack,cocreature/stack,fizruk/stack,GaloisInc/stack,wolftune/stack