Finishing the mofications for the next release

[renatopp]

I want to finally (officially) release a new version of Behavior3. Which I think it could be the 1.0.0, since it has been through a lot of changes since 0.1.0. To accomplish this, there are some important bugs that must be fixed and some features that weren't finished yet.

So this is my TODO list to the next release:

• [x] #10 Undo/Redo is having problems with properties
• [x] #9 Cut with problems
• [ ] #8 How to handle Multiple Trees (also related to #5)
• [ ] #7 Unable to remove properties from nodes (also related to #12)
• [x] #14 Building for desktops

Of course, we need to update the site and the client libraries, but the editor is the most important right now.

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