regex support on find_elements closes #21

[dunossauro]

Closes #21

[coveralls]

Pull Request Test Coverage Report for Build 43

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at ?%

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Totals
Change from base Build 41:	0.0%
Covered Lines:
Relevant Lines:	0

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💛 - Coveralls

[dunossauro]

Anyone can review this code?

@williangl, @rg3915 ... ???

[rg3915]

Anyone can review this code?

@williangl, @rg3915 ... ???
👍

[dunossauro]

@meiralins posso mergear? xD

[heliomeiralins]

@dunossauro I took another look and it's missing tests of the default behavior of the _num_or_match.
Perhaps you could implement the Number behavior in the default behavior. In this way, it would be tested and you add support for other types.

Also, consider renaming _num_or_match. Perharps matcher would do.