Fixes #11

I noticed while browsing around the source I determined that a change occured between these commits:

Commit d9076124202ebef74afd3959c0782115773e23e3 to Commit 40f09129756179ddc3d0366f765543cf69a195d4

If you notice the `tmLanguage` file moved from a `plist` to something that looks like a `yaml` file.

I performed the following steps to get this package to play nice in my sublime again:

- Installed [`AAAPackageDev`](https://github.com/SublimeText/AAAPackageDev)
- Renamed files from `tmlanguage` to `tmlLanguage`
- Requested  [`AAAPackageDev`](https://github.com/SublimeText/AAAPackageDev) to build a `plist` result
- Copy changes from my local `git` fork into `~/.config/sublime-text-2/Packages/Bind Zone files`
- Start up `sublime`
- Observe that a `Bind Zone Files.tmLanguage.cache` is now created in the package
- Open a `something.zone` file
- Observe that the syntax on the bottom tool bar is set to `Bind Zone Files`
- Observe that the file is now highlighted correctly
- Submit changes to github