- localstorage and navigator.onLine polled every 30 seconds and sync storage button shown if both true

- style modification for storage sync, zoom to location (still needs fine tuning) and #controls (moved to jquery function instead of css calc function which wasn't reliable working)

-added form autofill button for testing (most useful on mobile)

- on stop editing the TOC is not always shown in #controls on iOS safari - this needs to be addressed
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imgs stored in local storage in iOS Safari are not reliably (ever?) succussfully getting successfully added as attachements