Remove dependency on $crate metavar

[talevy]

I am not sure if this is possible, given how this macro is being used, but I got confused when
my tests would only compile when I had set $crate[ref] to mock.

#[cfg(test)] #[macro_use]
extern crate yup_hyper_mock as mock;

Here is the error when the above was not set:

<mocks macros>:11:1: 11:5 error: failed to resolve. Maybe a missing `extern crate mock`?
<mocks macros>:11 :: mock:: MockStream {
                  ^~~~
<mocks macros>:1:1: 14:68 note: in expansion of mock_connector!
src/lib.rs:66:5: 76:8 note: expansion site
<mocks macros>:11:1: 11:21 error: `mock::MockStream` does not name a structure
<mocks macros>:11 :: mock:: MockStream {
                  ^~~~~~~~~~~~~~~~~~~~
<mocks macros>:1:1: 14:68 note: in expansion of mock_connector!
src/lib.rs:66:5: 76:8 note: expansion site
error: aborting due to 2 previous errors

Thanks!

[Byron]

Thanks for posting !
The issue should now be fixed, and is live on crates.io in version 0.1.6 .