add SQL action for translating user ID to name

(mirrors existing method)

Conflicts:
	components/model/resources/ome/util/actions/default.properties
make user ID -> name available through password utility class
automatically upgrade legacy passwords if possible
adjust password test to expect automatic password upgrade
Return proper error message if bin/omero import is called from OMERO.py

This commit wraps the classpath search using path.py and calls self.ctx.die()
is an OSError is thrown.
Add unit test for bin/omero import with client directory
Display OSError in the CLI die message as suggested by Simone

Also handle the case of existing directories with no JAR files
Add parametrized test to handle non-existing/empty client directory
Flake8 omero.install.bzip2_tool
Flake8 omero.install.change_ports
Flake8 omero.install.logs_library
Flake8 omero.install.perf_test
Flake8 omero.install.versions
Flake8 omero.install.win_set_path
Flake8 omero.install.config_parser
Re-include omero/install in the top-level setup.cfg
PermissionsTestAll: refactor code.

- remove confusing var names,
- use camel-case,
- remove iterator use for map entries,
- use enhanced for loop,
- use maps to reduce the number of vars.
jquery blockUI update
Upgraded jquery.chosen

Removed some extra files such as the prototype version of chosen
Remove unsued jquery.multiselects.

Probably this was used before Chosen