Allow array for "includes" and "deploys" in mod.json

Both properties now allow either comma-split string or array of strings. 

### Changes
 - getIncludes() and getDeploys() both return String[]. 
 - returns array of string if array is found
 - otherwise splits and returns the comma split string as String[]
 - returns null if no value found
 - testMultipleIncludesArray Test included, with testmod9 (3 modules).

### Verified Tests

Env: rMBP OS X Lion

```bash
gradle -Dtest.single=ModuleInclude :vertx-platform:test
```