pbr>=0.11,<2.0
Babel>=1.3
python-dateutil>=2.4.2
ply<=3.6
six>=1.9.0

pbr>=0.11,<2.0
Babel>=1.3
python-dateutil>=2.4.2
ply
six>=1.9.0

Remove the upper cap on ply version
Remove the upper cap on ply version

Latest released version of ply is 3.8 now. Since it is very unlikely
that subsequent releases will break anything in yaql, it's preferred
to remove the upper cap at all.

Change-Id: I805d37917b65771736b54babe453edda2bba6e31
