Add method to DataField for retrieving k random values

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Support Unicode input in the CSV exporter

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Merge pull request #218 from cbmi/issue-217

Support Unicode input in the CSV exporter
Merge pull request #214 from cbmi/issue-213

Add method to DataField for retrieving k random values
Add tests/ to flake8 and fix existing issues

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Add Avocado ERD to README

Signed-off-by: Byron Ruth <b@devel.io>
Add optional queryset approach on data-dependent methods

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Merge pull request #220 from cbmi/issue-219

Add optional queryset approach on data-dependent methods
Fix bad option in and add tests for cache subcommand

Signed-off-by: Don Naegely <naegelyd@gmail.com>
Allow datacontext to return the real values for concepts and filters

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>