Tests

- Improve tests for VagrantBundle
- Add Phpunit Mock Functions
- Include in gitignore build folder
- Simple refactoring in VagranBudle for tests
CI and Coverage

- Travis files
- Added coverals
Changes

- Change Travis PHP version and removed colon.
- Update composer.lock with new packages
- Move bootstrap file
- Change bootstrap call in phpunit.xml
Merge pull request #12 from fabiorphp/master

Improvement tests for VagrantBundle file