Added validation using Cerberus
Added glob to load all schemas
Added doc for method
Fixed requirements
Added keys pepa_schema and pepa_schema_keys
Added tests for pkgrepo
Added in-line doc
Added schema to documentation
Fixed code blocks
Test RsT syntax
Another attempt get rst right
Yet another attempt
Removed README.md
Fixed tests
Fixed back-slash pylint errors
Cleaned up loading modules
Merged validation to master