Fix dialyzer errors.

[dhull]

This pull request contains a number of small fixes for simple_bridge 2.0.1 revealed by dialyzer, in order of controversy.

The first two commits fix genuine bugs that dialyzer uncovered: an incorrect conversion, and a function call with the arguments in the wrong order.

The third commit converts a now() call to os:timestamp(). Dialyzer warns that now is deprecated, and the os:timestamp call is equivalent (and faster).

The fourth commit removes a case clause that dialyzer says is unnecessary. I think dialyzer is correct, but even if it isn't the only difference is a slightly different error is returned from simple_bridge:inner_make/2.

The fifth commit silences another dialyzer warning, where is says that a function head is never matched. I believe that dialyzer is right, but rather than removing the code, I added a call from a dummy function to silence the warning.

Feel free to take as many or as few of these commits as you want, and to modify them as you see fit.

[choptastic]

Thanks David,

These look good.

I suspect the timer is a remnant of when I was first building the websocket hijacker. There's definitely no reason to keep it there.

You also may be right about the apply_mask dialyzer warning. I honestly can't say why I added that specific header clause. It's been so long since I wrote it, and I didn't comment on it like I should have. I'll try taking it out and see what happens with the websocket tests.

My gut tells me that when I was building it (and timing it), I was probably passing in binary strings for testing if it worked, and using that clause to convert the binaries to integer, so it's likely also a remnant from testing.

I'll give this a few tests and make sure it's all good, but I'm pretty confident this is fine :)

Thanks for the PR!

[choptastic]

Merged. Thanks!

[choptastic]

Oh, and by the way: I removed the apply_mask header after testing that its removal was unaffected by the autobahn test suite, and I removed the timer.