If day at begining retruns null (i.e. Wed, Sep 27, 2017)

[funkytwig]

Loving using the gem, good work.

did have once comment, which may be easy to sort. I sent 'Wed, Sep 27, 2017' to parse and it came back null. I striped the day out and it worked. wondering if this is easy to fix. Thinking if there is a day and date the day can be disregard.

[davispuh]

I've been working on rewrite for some time, it will be finished soonish, see #347

There it's super easy to add support for new formats, and I just added this one there, see ec65880