Adding improvements for CEP-938
Adding improvements for CEP-943
Adding improvements for CEP-946
Adding improvements for CEP-947
Merge pull request #12 from sacjaya/Siddhi-3.0.0

Siddhi 3.0.0 - siddhi core implementation
Merge pull request #11 from tishan89/Siddhi-3.0.0

Siddhi 3.0.0 core implementations
adding EventTestCase and ValidatorTestCase
adding test cases for streamJunction and queries