Bug fixes and updates to work for ET, TOI

[AndyTheFactory]

Issue by jasoriya Fri Apr 13 08:40:43 2018 Originally opened as https://github.com/codelucas/newspaper/pull/552

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Hello, I was working on parsing some India newspaper sites like Times of India, Economics Times and others.

1. I had to add additional values of attributes for parsing author names.
2. For publishedDate, one addition was required in PUBLISH_DATE_TAGS.
3. At line 195, I added an additional exception that occurred sometimes while parsing ET articles.

Please let me know any additional details you may require as this is my first pull request.

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jasoriya included the following code: https://github.com/codelucas/newspaper/pull/552/commits