code cleanup: moved static definitions to tgb.cc
Compiler warning (unused argument) elimination
doc: hw-indep. exmaple for watchdog
fix: misuse of ::
fix: LCHeuristic
Merge pull request #676 from mmklee/lcheuristic

fix: LCHeuristic
test: tr. #671 (0/0 in factorize (LHeuristic))
toward use of n_CoeffName instead of n_CoeffString/n_CoeffWrite
fix: memory leak in nrzIntMod
chg: hasGFCoefficient
avoid empty procedures - keep Top-namespace clean (a start)
doc: example watchdog, ring-indep.