Temp commit, prior to fetching from origin repo.
Added SymbolAnnotator.java, updated TypeSystemDescriptor.xml (and
resulting types)

Conflicts:
	qa4mre-alzheimer-task/results/12-test-alzheimer/Biomedical_about_Alzheimer_Sample_GS.xml_1.xmi
	qa4mre-alzheimer-task/results/12-test-alzheimer/QA4MRE-2012_BIOMEDICAL_GS.xml_1.xmi
	qa4mre-alzheimer-task/results/12-test-alzheimer/QA4MRE-2012_BIOMEDICAL_GS.xml_2.xmi
	qa4mre-alzheimer-task/results/12-test-alzheimer/QA4MRE-2012_BIOMEDICAL_GS.xml_3.xmi
	qa4mre-alzheimer-task/results/12-test-alzheimer/QA4MRE-2012_BIOMEDICAL_GS.xml_4.xmi