VS2017 Fixes

[lookatmike]

Fixes a few random issues with the VS2017 styles:

• Punctuation characters weren't being styled. Same as what was going on in #31 for VS2015.
• Verbatim @"strings" weren't being styled; name of the style was wrong.
• URLs weren't being styled and were pretty hard to read particularly in dark.

Dark before:

Dark after:

Light before:

Light after:

[leddt]

Awesome, thanks for your contribution, and for the detailed pull request!