syntax: regexp
artifacts/target      # maven output
artifacts/\.classpath # eclipse
artifacts/\.project   # eclipse
artifacts/\.settings  # eclipse
artifacts/test-output # eclipse junit/testng plugin output
backend/target      # maven output
backend/\.classpath # eclipse
backend/\.project   # eclipse
backend/\.settings  # eclipse
backend/test-output # eclipse junit/testng plugin output
gwt-client/target      # maven output
gwt-client/\.classpath # eclipse
gwt-client/\.project   # eclipse
gwt-client/\.settings  # eclipse
gwt-client/test-output # eclipse junit/testng plugin output
gwt-client/src/main/webapp/OpenLayers-2.11
etl/target      # maven output
etl/\.classpath # eclipse
etl/\.project   # eclipse
etl/\.settings  # eclipse
etl/test-output # eclipse junit/testng plugin output
\.swp
\.swo
\.jar
\.pyc