conda: changed builds of pt and tv (fixes #97)

[v-iashin]

should fix #97

[v-iashin]

run the tests with the new environment -- ok.

TODO:

• [x] change docker
  • [x] push to the hub
• [x] change bmt and mdvc branches in video_features
• [ ] change the commit in readmes in other repos (mdvc, bmt)
• [x] checkout to the latest commit in these branches
• [x] change the environemnts in mdvc and bmt