Add more types of shapes with diff-updates

[erkie]

@SamvelRaja this is in reference to the issue where we discussed marker diffing #27.

This includes some major changes in the API of the component.

• I moved out the markerOptions object and infoWindow object into separate properties
• Renamed markerOptions to just markers
• Refactored the Helper-mega object into smaller classes, and to be used as an instance instead
• Add rectangles, circles shapes as well
• Update README.md to reflect changes
• Make key attributes mandatory on all passed in objects, so we can diff and add new ones, update old ones and remove removed ones

Example usage is now for example:

{{google-maps-addon mapOptions=mapOptions markers=markers}}

With this comes a lot of flexibility and the ability to easily add more objects, like Polygons and PolyLines. We can also add a lot more lifetime callbacks to the objects, like onCreate, onUpdate and onRemove which provides loads of flexibility. We can also animate changes because we always only update changed attributes.

What do you think? I have tried it out in our projects and it works very well and is nice to work with.

[erkie]

@SamvelRaja would love to hear your thoughts on this. :)

[SamvelRaja]

@erkie kindly merge it on your own and let me know. please make sure the tests are passing :p

[erkie]

Thanks @SamvelRaja. Tests pass now! Merging

[SamvelRaja]

@erkie will update npm by this week end.
It would be better if you can specify your email to add as contributer in npm as well

[erkie]

Cool! My npm email is [email protected]

[SamvelRaja]

@erkie i tried adding as you as collabarator in npm to allow you to publish by yourself, but i couldn't get your username for it.

[erkie]

My npm username is erikrothoff if it helps. Thanks!

[SamvelRaja]

Added you as collaborator, should be reflected within 24hrs from now