Merge remote branch 'origin/Ross/RACleanup'
Merge remote branch 'origin/feature/7195_Loader_for_LLB'
RE 7296_Clean_up_unused_unit_test

Removed unit test IntegrateEllipsoidsTest.h, which was not
allowed since it required a data file that was too large.
This was converted to a system test under ticket 6432.

refs #7296
Merge branch 'feature/7296_Clean_up_unused_unit_test' into develop