Enable tracing for M2E

[1] http://help.eclipse.org/kepler/index.jsp?topic=%2Forg.eclipse.pde.doc.user%2Fguide%2Ftools%2Flaunchers%2Ftracing.htm
[2] http://wiki.eclipse.org/Tycho/FAQ#How_to_switch_on_eclipse_tracing_during_test_execution.3F
Build projects before running tests
Explicitly build each project

Setting autoBuild to true causes test to fail with:

    Timeout while waiting for completion of job: Building workspace(4)
Don't catch errors when waiting for ADT to load
Explicitly build each project
Explicitly build each project
Explicitly build each project (with helper method)
Enable project refresh job
Don't build POM
Drop useless setUp() method
Run incremental build instead of the full one

Should fix

    Unexpected error markers Type=org.eclipse.jdt.core.problem:Message=R cannot be resolved to a variable:LineNumber=21