BUG: Refs #212.  Made createSubDirectories not fail if a dir exists.
BUG: Refs #212.  Made createSubDirectories not fail if a dir exists.

jcfr/Midas,jcfr/Midas,mgrauer/qibench,mgrauer/qibench,jcfr/Midas,jcfr/Midas,mgrauer/qibench,mgrauer/qibench,jcfr/Midas,mgrauer/qibench,mgrauer/qibench,mgrauer/qibench,jcfr/Midas