Dan Walker

Adds tls option to LDAP identifier

1

Adds an option to start TLS on connection to an LDAP server. Defaults to false.

X-axis min and max result in no displayed data

1

There seems to be a bug in the time-axis calculations. Minimum example using `sensor_data.nc` from https://github.com/ncasuk/ncas-isc/blob/master/python/exercises/example_data/sensor_data.nc `cis plot temp:sensor_data.nc` works as expected, but `cis plot temp:sensor_data.nc --xmin "2017-02-22T10:00:08" --xmax "2017-02-22T11:00:08"`...