Work in progress
Added test to scene manager
Works for creating & basic merging
May fail when edge cuts vertex, or two vertices co-incide
Added travis support
Added build status
Update .travis.yml
Updated i18n - now with full tests and simplified loading
Reorganizing view package in editor
Added file option And a new method for asking for folders, and some javadoc in platform
Now using constraints in IntegerOptions
will slowly add constraints to othe option types
Simplified EditorModel, ModelEvents
also added a test for the new ModelEvents
(no longer interface, adapted from old MergeableChange)
Added show message to view controller
Added JTS library for triangulation, geometry boolean operations

Allows, for example, polygons to be merged into an existing,
possibly-disconnected shape; the shape to be triangulated; and the
result used to clip an arbitrary image. The shape could also be used
for collision-detection using the Jts "intersects" primitive.