Initial cran release

Version 0.1 is ready to go. There was a **NOTE** from `R CMD CHECK`:

```
 * checking data for non-ASCII characters ... NOTE
   Note: found 8 marked UTF-8 strings
```

If it matters going forward, I made these changed in 0ec85495993f1748ce063a6c78d618ee7202db20 based on [this SO post](http://stackoverflow.com/a/19480595/234233) to resolve a Unicode-related **WARNING**.