Fix issue #15 where escaped escape chars were treated as escape chars

[derek-miller]

No description provided.

[doowb]

Thanks! I'll take a look at this and get it merged tonight.

[yairk]

Any chance to get this merged, @doowb, @jonschlinkert ? I was bitten by this too, and really need the fix.

[yairk]

Reviewing the pull request again, I suspect that the code counts the number of backslashes before the opening quote, and uses this to decide if the closing quote candidate should be respected.

In other words, given the string '\\\\"hello.world\\"', the code will (correctly) decide that the opening quotes are not escaped, but will wrongly decide that the closing quotes are escaped because it doesn't count the number of backslashes before the closing quote.

@derek-miller - I know it's been a while, but did this code work for you?
@doowb , @jonschlinkert - If you agree, I can submit a corrected PR if there's interest from your side and you're still maintaining this project.