[RELEASE] v0.3.0

af188ff Clozedropdown WIP
8fe97a9 Fix features bug
74d55dc Clozetext mapper, finish up docs, integration tests, and validation builder
2ce4756 Clozetext mapper WIP
b46ca5d Add data api options to optionally opt-out of qti pre-validation
e7e85de Clozeassociation mapper WIP, almost done, missing out unit tests
e86f345 Improve exceptions error messages by throwing up invalid xmls errors upon invalid qti
35818d3 Add support data only questions parsing with randomized question reference
a00132a Update outdated documentations
ecee744 Mapping feature functionality WIP