All tests compile, 10 tests failing
	 18 - gtest_problem (Child aborted)
	 19 - gtest_processor_base (Child aborted)
	 20 - gtest_processor_motion (Child aborted)
	 31 - gtest_tree_manager (Failed)
	 35 - gtest_factor_block_difference (Child aborted)
	 36 - gtest_factor_diff_drive (Child aborted)
	 46 - gtest_processor_diff_drive (Child aborted)
	 47 - gtest_processor_loopclosure (Child aborted)
	 48 - gtest_odom_2d (Child aborted)
	 53 - gtest_tree_manager_sliding_window (Failed)

Rename {sensor, processor, solver}_factory.h -> factory_{sensor, processor, solver}.h