and determine Java version on Android

Use for stops, starts, and updates, and others.
Mark all restarts on graphs using the event log.

This is required in order to get the theme config keys of the various apps into
themes.config; this way, the routerconsole requires no knowledge of what apps
support universal theming, and can just blanket apply themes to all known keys.

The iframing pages remain accessible in the console, so this may be reverted in future,
or made configurable. The /webmail link buried in the text of the several readme.html
files has been left.

   Icon created and contributed by colombo-bt.i2p

- Add Greek language
- Update Dutch translation
- Adjust flag rows