Unit test failure fixes

[n1zea144]

Fixes one exception and a test failure while running unit tests in core:

• Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cacheMapUtil': Invocation of init method failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find SQL statement to include with refid 'org.cbioportal.persistence.mybatis.GeneMapper.select'

This one is solved by setting mapperLocations in dao context file.

• TestDaoTextCache.testDaoCaseList:82 expected: but was:

I fixed this by setting the time zone of the java code to UTC which seems to be the default time zone of MySQL installations. This could be problematic if local installations change the default timezone.

Per @pvannierop good suggestion - set default values for db test database inside applicationContext-dao.xml. This also allows travis command to be shortened.

[pvannierop]

OK!