Fix clang warnings and errors in CondFormats/CastorObjects.

Removed unused variables.
Implemented thread-safe deletion.
Fix clang errors in GeneratorInterface.
Fix clang issues in FastSimulation.
Modify deletion of atomic contained objects.
Have tests use cmssdt rather than cmsdoc.
Merge pull request #3813 from ktf/fix-utilities-tests

Misc cleanup -- Have tests use cmssdt rather than cmsdoc.
Merge pull request #3804 from ktf/clang-generator-interface

Clang -- Fix clang errors in GeneratorInterface.
Merge pull request #3807 from ktf/clang-fastsim

Clang -- Fix clang issues in FastSimulation.
Merge pull request #3784 from degano/fix_warn_clang_castorobj_noHeaders_71X

Clang -- Fix clang warnings and errors in CondFormats/CastorObjects.
Merge remote branch 'origin/CMSSW_7_1_X' into CMSSW_7_0_X