CLI bug fixes

[joshmoore]

Various dangling CLI tickets from 5.0:

12024

http://trac.openmicroscopy.org.uk/ome/ticket/12024 to filter inactive users:

$ bin/omero user add -e "test@example.com" emailtest Email Tester sudotest
Please enter password for your new user (emailtest): 
Please re-enter password for your new user (emailtest): 
Added user emailtest (id=802) with password
$ bin/omero user email -i
test@example.com, ...other addresses...
$ bin/omero user email -i --all
test@example.com, ...other addresses...
$ bin/omero group removeuser --name user emailtest
Removed 802 from group 1
$ bin/omero user email -i
...other addresses...
$ bin/omero user email -i --all
test@example.com, ...other addresses...

12002

http://trac.openmicroscopy.org.uk/ome/ticket/12002#comment:5
bin/omero config operations should now only save once and that they do via write-and-rename.

[mtbc]

Travis failure.

[ximenesuk]

Functions as expected, unit tests passes, code looks okay. Good to merge unless this is waiting on anything else.

[joshmoore]

--rebased-to #2273