Breaking Changes:

• Bump data.json to 0.2.3 and tools.reader to 0.7.8

Enhancements:

• Use tools.reader everywhere, pass file information allowing errors at read time to give accurate locations

Fixes:

• CLJS-595: keyword invoke default bug
• CLJS-594: declare divide so accidental redeclaration is caught
• CLJS-599: keyword fn not idempotent
• CLJS-587: stack overflow on lazy seqs