Removing special characters

[ericel]

The present state of the slugify function does escape or remove special characters.
For instance , it can't slugify a url {{"https://github.com/danrevah" | slugify}} and will cause problems in angular2 routes.
So add the regex to remove special characters output : https-github.com-danrevah

[coveralls]

Coverage remained the same at 100.0% when pulling aa82a46 on ericel:patch-1 into 509cb47 on danrevah:master.

[danrevah]

Nice catch. but the space in the regex was redundant (I've changed it).
Do you wanna add a test case for it so I will merge it?

[coveralls]

Coverage remained the same at 100.0% when pulling 2390012 on ericel:patch-1 into 509cb47 on danrevah:master.

[ericel]

That's okay! I love your module and am happy to see it working fine.

[danrevah]

Fixed and published to @1.2.3

Commit: 376cff7