*Deleted SimpleResource.java since not needed (Ajax calls on Dropwizard are now working)
*Deleted ComputeHealth and replaced with PaloAvailable is a real HealthCheck not a UnitTest.
*Added TestPaloMock.java contains ComputeHealth, as explained ComputeHealth is a UnitTest not a HealthCheck
*Added ExcelParser which is used at upload-method to parse excel files.
ignored Some files and folders which should not be stored in GIT