unittest parser (free size key at end)

uniittest parser, free size key bug at end.
Also need beginning and other special cases to follow.
Merge branch 'master' of https://github.com/pnuu/trollsift
unittests and bugfixes for free size key extraction + Py2.6 bugfix

unittests and bugfixes for free size key extraction + Py2.6 bugfix
for format string bug in globify.