Unit Testing

Improved unit testing and general development goodness.

## General Preparation

* [x] PHPUnit
* [x] Testing Database Configuration

## Test Setup

* [x] Database Fixtures

## Tests

* [x] Glossary Linking
* [x] Wikipedia Linking

## Automation

* [x] Travis
* [ ] Coveralls
* [x] Scrutinizer

## Finishing

* [ ] Rebase branch and tidy things up.