Compile and run errors in Workbench 1.6.0.9 with Eclipse 4.3.1 and Java 1.7/1.6

I followed the instructions here: https://www.i2b2.org/software/files/PDF/current/i2b2Workbench_Developers_Guide.pdf

There were components besides edu.harvard.i2b2.eclipse that had JRE compliance explicitly set, and they were all set to 1.5. The remaining components defaulted to 1.7. I tried continuing with the build instructions nonetheless and there were build errors as follows:

edu.harvard.i2b2.eclipse/

        src/ProjectManagementRequestData.java, lines 16, 17, 35, 144
            (it seems I am missing org.apache.commons.logging.Log and org.apache.commons.logging.LogFactory)

        META-INF/MANIFEST.MF, lines 11, 28, 29, 39, 39

edu.harvard.i2b2.eclipse.plugins.workplace/
        META-INF/MANIFEST.MF, line 26


I refreshed and went through the run configurations setup and attempted running edu.harvard.i2b2.eclipse as per instructions, and it would not launch. I went through all the projects and manually changed their compliance, making sure to replace JRE 1.7 with 1.6 in their build paths. Then I re-built. The build errors were in the same places as before and are in the attached build log. Also attached is the stack trace from my final attempt.