Mostly merged functionality of consoleAutosave.js and autosaveElement.js
Add consoleAutosave snippet (for Google Chrome)

Fix links

Cherry-pick lost content from previous commit of consoleAutosave/README.md

typo fix

Unified functionality with autosaveElement.js.
autosaveElement.js is already useful in firefox and chrome
to select element (or ancestor) based on selection in tabs like webchat.
TODO: autosave webconsole in firefox.

That's readable after [Format JS] in eclipse orion editor.
Also passes JSLint.

Normalize single-line comments, with documented eclipse orion replace command.