v.1 -> v.2.2, next rolling release, SFX-8 as main branch, demos

[Jarek Sacha]

There are a couple of things, kind of related:

• v.1 seems to confuse some new users with JavaFX 1. We should change it to follow JavaFX version, so for the next release we will have something like v.2.2.60-R9, and refer to it shortly as `SFX-2` (please comment on Issue #135)
• It is 3 months since last release. The code now settled down at GitHub. It is time to make rolling release with changes that accumulated. I am planing to do it next Friday afternoon.
• It is time to move the main development branch to `SFX-8`. Looks that most of the users are using SFX-8 already. I think we should switch main branch just after the next release. Though I am strangling a bit how to effectively do it. The current plan is to branch the current `master` as `SFX-2`, then merge `SFX-8` into `master` (actually override the `master` with `SFX-8`). Though this does not look very clean as we will have dandling `SFX-8` branch and a strange merge into `master`. Other option may be to just rename `master` to `SFX-2` and `SFX-8` to `master`. Thoughts? Suggestions how to move the main development branch in the cleanest way? (please comment on Issue #136)
• Cleaning of scalafx-demos. Over time the demos project become kind of messy. Some important demos, like ColorfulCircles in SFX-8, no longer work. Many kind of obsolete or use outdated API. Organization is kind of chaotic. We will need brief description with screenshots of the demos on ScalaFX home page. Anybody would like to tackle this? At least untangle this a bit?
  

I appreciate your feedback,

Jarek