IntelliJ configuration fixes:
- Make FacetTestCase abstract so that the IntelliJ test runner doesn't try to execute its tests under the facet module test run configuration
- In the facet module configuration, drop source directory facet/src/examples/ and add source directory facet/src/resources/
- Add -Xmx256m to the Lucene core test run configuration to avoid OOM in a couple tests
- Add resource pattern 'test-files:*' to .idea/compiler.xml, so that all files under */src/test-files/, regardless of file name/extension, will be copied over to the test output directory (previously .js files under solr/src/test-files/ were being excluded)
(merged trunk r1447154)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1447155 13f79535-47bb-0310-9956-ffa450edef68