database.tables.display_entries: do not display microseconds
Merge branch 'master' of https://github.com/sunpy/sunpy into displ-entries-time
Merge branch 'master' of https://github.com/sunpy/sunpy into displ-entries-time
Merge pull request #769 from derdon/displ-entries-time

database.tables.display_entries: do not display microseconds