Checking in some test functions

for testing memory leak with large messages
Changed the names
Merge pull request #693 from Microsoft-CISL/shravan_memleak

Checking in some test functions
Merge branch 'weimer_shade_filter' of https://github.com/Microsoft-CISL/REEF into weimer_shade_filter
Merge branch 'weimer_shade_filter' of https://github.com/Microsoft-CISL/REEF into weimer_shade_filter
Use classpath from classloader instead of system classpath