Fixed bug: error while saving reporter with no school
added tests for p6 polls
added tests for p6 polls results and implementation
Revert "added tests for p6 polls results and implementation"

This reverts commit c9da2da22c8ecf2815c1e1c79d069635a4f57a38.
Revert "added tests for p6 polls"

This reverts commit 933e21f4bf32a1ac339f0abdf30ce9fe973e786a.