Integrate Truffle Test with travis.yml

[abhayks1]

• Below command was not running test cases. It's showing 0 passing truffle test test/contracts/price_oracle/
• Let's fix it and integrate with .travis.yml

[jasonklein]

@abhayks1: I don't think that's the right command to use. Either pass in just truffle test or truffle test [path/to/file (see http://truffleframework.com/docs/getting_started/testing#command): truffle test test/contracts/price_oracle --> 0 passing (0ms) truffle test test/ --> 0 passing (0ms) truffle test test/contracts/price_oracle/base.js --> 10 passing (1s) truffle test test/contracts/price_oracle/*.js --> 10 passing (1s)

🚨 N.B.: the results above are from running tests on jasonbanks/gh4/test-price-oracle. When I run on develop, 3 tests fails

[jasonklein]

Resolved by #34.