scala support in examples
Commenting out non-deterministic portion of unit tests

These verifications are non-essential so commenting out right now until I or someone else has time to fix it correctly.
scala is building
Eclipse build config

- Include 'provided' in Eclipse classpath
- Upgrade to Groovy 2.+
Remove scala from rxjava-examples

Groovy and Scala can't co-exist in a single Eclipse project even though Gradle handles it fine.

Perhaps the examples should go in the /test/ folder of each of the rxjava-[language] projects instead of rxjava-examples?
Merge pull request #122 from benjchristensen/examples

Examples Cleanup