Fixed can't work if this component is used in sub container.#4

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malikid wants to merge 3 commits intocodingfishman:masterfrom

Commits on May 26, 2017

Replace jQuery.extend with a plain javascript one to avoid 'jQuery.extend is not a function.'
malikid
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Commits on May 31, 2017

Fixed can't work if this component is used in sub container.
malikid
committed

Commits on Jun 8, 2017

Added a property for excluding margin at the top
malikid
committed