1.5.0

• JVM: Storage! d/storage, d/store, d/restore, d/addresses, d/collect-garbage, d/file-storage, d/restore-conn. See docs/storage.md for details
• d/settings and per-database :branching-factor (passed via :opts)
• New API: d/find-datom. Works like d/datoms, but only returns single datom, but is faster than (first (d/datoms ...))
• CLJS: Optimized various parts of CLJS version related to compilation and index access