Dvc

* docs: update badges (3380) casperdcl
* dont disable existing loggers when dvc is set up (3345) ttekampe
* erepo: set up more logging (3403) Suor
* erepo: fix relative url on default remote (2756) (3378) tizoc
* Remove Linux pyfastcopy (3412) rxxg
* pull: fetch: external: respect `--jobs` (3413) casperdcl
* analytics: fix resolving used scm (3405) pared
* gdrive: do not import pydrive2 on module load (3399) Suor
* SCM: allow multiple DVC repos inside single SCM repo (3257) pared
* api: docstring updates (3352) jorgeorpinel
* change diff checksum arg name to hash (3384) shcheklein
* gdrive: a pair of cleanup refactors (upstream branch) (3382) Suor
* gc: make it safer by only activating by use of certain flags (3363) skshetry
* Stage: fix used_cache warning on no checksum (3365) pared
* remotes.http: Support dvc push for http remotes (3343) pmrowla
* completion: bash: properly recurse targets (3374) casperdcl
* metadata: add Zenodo, tidy badges and keywords (3373) casperdcl

* Enabled Zenodo integration.

* test: repro: prevent dvc.stages resetting (3368) efiop

* completion: bash: allow multi-arg completion, minor tidy (3367) casperdcl
* Stage: create: reset repo when removing existing stage (3349) pared
* Fix bash completion (3360) casperdcl
* ui: fix missing progress & tidy (3335) casperdcl

* external_repo: fix bug in path resolution (3350) efiop
* get/import: updates output strings, et al. (3308) jorgeorpinel
* term: avoid "under X control" and other help output updates (3322) jorgeorpinel

Fixed `gitpython`'s version in dependencies.