Proper getting of read/write functions in loopconfig object.
Proper getting of read/write functions in loopconfig object.

The read and write function for an STL collection proxy are not necessarily
the same (in particular for an associative container).  So when initializing
the loop config, we need to make sure to use the grab the right ones.

tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,Dr15Jones/root,kirbyherm/root-r-tools,kirbyherm/root-r-tools,tc3t/qoot,kirbyherm/root-r-tools,tc3t/qoot,Dr15Jones/root,tc3t/qoot,Dr15Jones/root,tc3t/qoot,tc3t/qoot,Dr15Jones/root,kirbyherm/root-r-tools,kirbyherm/root-r-tools,Dr15Jones/root,tc3t/qoot,tc3t/qoot,Dr15Jones/root,tc3t/qoot,Dr15Jones/root,kirbyherm/root-r-tools