Convert project to Maven and update dependencies

Converted project to Maven. Use it like a maven dependency on your project:

```XML
<dependency>
	<groupId>org.dbunit.dataset.builder</groupId>
	<artifactId>dbunit-datasetbuilder</artifactId>
	<version>1.0</version>
</dependency>
```
Updated dependencies
dbunit: 2.4.8 > 2.4.9
slf4j-*: 1.6.1 > 1.7.5
junit: 4.11