added blacklist option to isEmail()

[Hzbbaum]

pull request for isssue 654
Added an option in isEmail() to for blacklisted_chars, that recieves a string and checks if the name part
of the mail contains it, and returns false if it does.
added some tests and updated the readme.

Checklist

• PR contains only changes related; no stray files, etc.
• README updated (where applicable)
• Tests written (where applicable)

[profnandaa]

Thanks for your PR!

1. could you please provide some justification for your change?
2. remove all the unrelated changes/files.

[Hzbbaum]

thank you for your response. I would like some quick pointers, if possible.

1. as for justification, this PR is meant to solve issue 654 which was tagged help wanted. please advise what further justification is required.
2. my apologies, but this is my first PR. The important changes are to readme, src/lib/isEmail.js, and test/validators.js. All the other changes occur when i run the test command as part of the compile. should I submit only the 3 changes?

[profnandaa]

@Hzbbaum -- got it, thanks!

Sure, as for the unrelated changes auto-generated, you can remove them from the PR, you can only stage the related changes.

[rubiin]

@profnandaa this pr seems stale, more than two months and still no reply from author. If you like i could pull up the fork and do necessary chnages so that it can be merged

[profnandaa]

Sure, please do a new one. Thanks!

[rubiin]

sure, gimme a day or two , i wll clean things up