update context and memex-feature-ontology for deobfuscation
implement model for clean title (only), not clean body (TBD)
The correct JSON (generated from WebPage, not from top menu link).
Merge branch 'development' of https://github.com/usc-isi-i2/dig-alignment into development

merged text_* features, regularized the commas a little bit

Conflicts:
	datasets/istr/context-for-istr-datasets.json
	karma/preloaded-ontologies/memex-feature-ontology.ttl