Documentation is out of date

[DuncanUszkay1]

The examples in the readme don't work in version 0.6.1.
If I create a new project and copy the example code:

use dogstatsd::{Client, Options};

fn main() {
    let client = Client::new(Options::default());

    // Increment a counter
    client.incr("my_counter", vec![]).unwrap();
}

I get a compiler error:

Compiling rust-test v0.1.0 (/Users/duncanuszkay/src/github.com/Shopify/rust-test)
error[E0599]: no method named `incr` found for type `std::result::Result<dogstatsd::Client, dogstatsd::error::DogstatsdError>` in the current scope
 --> src/main.rs:7:12
  |
7 |     client.incr("my_counter", vec![]).unwrap();
  |            ^^^^

error: aborting due to previous error

It seems that this is due to the fact that the Client::new method returns a result in the newer code.

Additionally the link to full documentation is out of date:

[mcasper]

Hey @DuncanUszkay1, thank you for reporting this! I just pushed a commit that should resolve this: 031dea8

[mcasper]

In addition I've just pushed 9fb82d1 which fixes the Travis/Github integration for uploading the latest docs to GH pages