Removed test_user_old.py from ui and cli
Deleted left over API test module.

@asaleh forgot to remove this file after merging it with existing ``test_org.py``.
Removed metacli references
Removed unused imports
Merge pull request #418 from omaciel/delete-mr-brno-file

Deleted left over API test module.
Improve documentation of records.fields module
Merge pull request #419 from sthirugn/mergefiles

Removed test_user_old.py from ui and cli
Merge pull request #417 from elyezer/fields-docs

Improve documentation of records.fields module