This is necessary for cleaning up after tests (now that each test has its own
initialized converse).

Should hopefully not cause any issues when logging out during normal use.

and don't show the online count in the toggle.

Otherwise RosterContactView objects stay around and keep on listening.

Only a small subset of tests currently working with this.

To allow for better template customization.

- Remove groupviews, so that they'll get recreated upon reconnection
- Don't call `clearSession` when reconnecting. We want to reuse the
  Backbone collections.
- Emit `rosterInitialized` event and use that in converse-rosterview.js
  (instead of overriding).
- Refactor `onReconnected` to emit `rosterReadyAfterReconnection`, call
  `converse.populateRoster()` and `converse.chatboxes.onConnected()`.
- Recreate the roster view on the `rosterReadyAfterReconnection` event.

It's not used and confuses people. Instead the message gets inserted via
`$.text`, to avoid injection attacks.

updates #714

BREAKING CHANGE: This module no longer supports Node.js 0.10

* Use roundcube plugin fork with current converse.js

The previous plugin developer is still running an ancient version of converse.js.  This updates the link to point to a fork that us running a current version of converse.js.

* Add up-to-date version of roundcube plugin to index.html too

Could be a different element as well.

The previous plugin developer is still running an ancient version of converse.js.  This updates the link to point to a fork that us running a current version of converse.js.

In the process also updated `updateSettings` to allow merging.

Including:
- Always render bookmarks list
- Hide bookmarks list if no bookmarks available
- Only send bookmarks stanza when appropriate