A few changes to allow macros to be contributed to DataFu. If a macro file is placed in src/main/resources, it can be used by registering the DataFu jar. Such macros can then be tested both from within Eclipse and Gradle.
There are three small parts:
1) All unit tests that use createPigTest methods will automatically register the DataFu jar.
2) Some changes to fix the PigTests.getJarPath() functionality, which doesn't appear to work. (these changes are aligned with the proposed patch for DATAFU-106)
3) A sample macro and test