Remove some const declarations; these lead to compiler errors with IBM's compiler on the Blue Gene/Q
Add missing CCTK_DECLARE_UNUSED declarations
README: minor change to test commit notifications
README: another minor change to test commit notifications
Use CCTK_ macros instead of LC_ macros for looping
Do not generate integer constants

Do not generate integer constants; this may fail if they are arguments to two-argument functions (e.g. pow) with some C++ compilers.
Merge branch 'master' into eschnett/dgfe