Merge pull request datajoint#323 from fabiansinz/master

Add `size_on_disk` property for schema

Merge pull request datajoint#321 from eywalker/master

Add confirmation step for `set_password` prompt

Merge pull request datajoint#319 from eywalker/master

Update `fetch` and `fetch1` syntax

Merge pull request datajoint#317 from dimitri-yatsenko/master

Fix datajoint#288 (add connection id to jobs table) and modify `key_source` handling

Merge pull request datajoint#140 from eywalker/master

Rearrange `__repr__`