update screen shots to Graphiti based route editor (and amend docs where necessary on how you move versus connect nodes)

To fix various existing issues with the camel editor (e.g. ECLIPSE-185, ECLIPSE-311, ECLIPSE-284, ECLIPSE-357 et al) we've a new Graphiti based editor which makes things much slicker & more intuitive.

The main differences are:

• no 'move and connect' modes; you click and drag to move stuff around; then as you hover over a shape a couple of icons popup; the arrow is the connection tool - drag and drop that to connect
• we show 1 route at once; this makes the layout much simpler and more intuitve; users don't have to keep moving/dragging routes around to resize them so they have space to drop new icons etc. It also fixes numerous gremlins in the layout code
• you can switch routes using the outline view (click on a node/route to switch) - or the Eclipse Camel pull down menu; Camel -> Route 2 for example to switch to Route2

Some added benefits

• export to diagram now works
• optional grid graph paper (can be enabled/disabled via context menu)
• you get layout aids (little lines that popup when you are aligning / centring nodes relative to other nodes like you get with Viso / OmniGraffle / Keynote et al)