Update spring-integration-twitter to 3.0.0.RELEASE

Previous value (2.2.4.RELEASE) causes a runtime exception:
- ClassNotFoundException: org.springframework.integration.store.MetadataStore
Update spring-integration-twitter to 3.0.0.RELEASE

Previous value (2.2.4.RELEASE) causes a runtime exception:
- ClassNotFoundException: org.springframework.integration.store.MetadataStore
Update spring-integration-twitter to 3.0.0.RELEASE

Previous value (2.2.4.RELEASE) causes a runtime exception:
- ClassNotFoundException: org.springframework.integration.store.MetadataStore
Merge branch 'patch-2' of https://github.com/andirdju/gs-integration
Merge branch 'patch-3' of https://github.com/andirdju/gs-integration
Closes #4, #5, #6: Update to 3.0.0.RELEASE Spring Integration
Merge pull request #1 from spring-guides/master

Update spring-integration-twitter to 3.0.0.RELEASE