Get/Set methods should be deprecated

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I initially thought that having get/set methods for the visual parameters was a nice idea. It is quite handy to have the ability to change parameters at runtime (after creation), but I haven't really seen anyone using these functions apart from the initial set up of the CanvasLoader instances, so I believe we can deprecate this functionality and add a initial visual Object parameter to the constructor instead (as mentioned in issue #6). This solution also should decrease the file size quite significantly. This feature will be implemented in the next version.

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On develop branch the getters/setters are a lot cleaner and work more effectively: https://github.com/heartcode/CanvasLoader/tree/develop