skipUnless never actually worked in py2.6, also add prefix ability to named temp test
skipUnless never actually worked in py2.6, also add prefix ability to named temp test

simudream/sh,twocngdagz/sh,z-fork/sh,germangh/sh,jakirkham/sh,pdelong42/sh,amoffat/sh,lwgarmstrong/sh,rdhyee/sh,pombredanne/sh,ppannuto/sh,Stupeflix/sh,achernet/sh,rsmith31415/sh,amoffat/sh