[tests] Use 16 bytes key when testing Blowfish The version of Cryptodome currently in Debian only accepts Blowfish keys with at least 5 bytes. This is a bug (it should accept 4 as it did before) that has since been fixed upstream: https://github.com/Legrandin/pycryptodome/commit/93912230f3c39e09f4038cb17e301468687c6538 So we work around this issue by using a 16 bytes key instead (which happens to be the minimum recommended length).

Use time.process_time() instead of deprecated clock() This fixes: DeprecationWarning: time.clock has been deprecated in Python 3.3 and will be removed from Python 3.8: use time.perf_counter or time.process_time instead

[web] Make the time separator configurable in JQueryDateTimePicker We add a "separator" argument to JQueryDateTimePicker which will be used when creating the underlying JQueryTimePicker instance so that the user can control how time is displayed by the widget. This is very similar to the "timesteps" argument that's already present.