Make the current version as the dev version. This will make it clear from the version if this is the last release of the dev version.

Convert Github readme.txt to .rst

Faster topo

Fix memory leak in GpuCAReduceCPY

don't move op that don't support float16 on the GPU

(crash fix) Fix availability of cuDNN enumerations in v5 vs v6.

Convert some OrderedSet when we only check if element are in the set or don't care about the iteration order. Only local changes.