Revert "fixed capitalization in name of SpinQueue"

This reverts commit 04d5146af036fe8958a76ebe4c35079995ef0c39.
merge with lorenz
Merge branch 'master' of https://github.com/Lorenz-badgers/qtpie
fixed capitalization error
cleaned up test_mpmc.h

removed debug output.
added macros for automated testing in one variable

added macro that does a row of tests with a given Queue Type, Test Type and autoincrementing one variable
added step size for autoincremented variable test

step size was always 1. That could have been tedious.
added class Test_mpmc_check for validity checks

Test_mpmc_check works similar to Test_mpmc,
but instead of time keeping, it checks for data errors in the Queue.