Completely replace old db map with db runner map; fix onDestroy() to cleanup db runner map & stop db threads (ref: #131/#134); other fixes to db runner map semantics; other minor cleanups (Android version)
Update README.md: issue with multi-page apps fixed on Android (ref: #106/#134); INSERT multiple rows affected broken on Android (ref: #136); possible issue with triggers (ref: #133)
Merge branch 'common-src' into master-src: fix issue with multi-page apps on Android (ref: #106/#134); update README.md (ref: #106/#134;#133)