Return to current branch after release; tag dev branch

### Issue 1
Releaser tags a commit which is only in the subtree so tags never get back in the development branch.

### Fix 1
Before releasing and tagging the `dist` subtree, tag the development branch with the same tag + `dev`

### Issue 2
After releasing, script returns hard coded to `integration` branch.

### Fix 2
Get current git branch and return to current branch after release.