add model inspectory tutorial by copying from 5.32 patches.  Fix also some compilation warnings
add model inspectory tutorial by copying from 5.32 patches. 
Fix also some compilation warnings


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@44124 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT