added basic structure and skeletal docs for criteria API
added singleSelect
added multiselect
added joins
added UML model for Criteria API
added predicates
added in() operator and subqueries
working with case
updated diagrams
added metamodel
added case
started notes outline
added query example structure
removed unused imports
added thin-crosscutting examples
added simple query
added initial multiselects
added links to docs
added collection paths and JOINs
fixed column name in native query