PP pruning: Ignore cms table connectors marked with BAD_WORD
PP pruning: Ignore cms table connectors marked with BAD_WORD

No significant speedup.
Only one change in the `basic` and `fixes` batches (others not checked
for detailed parsing):

linkparser> it is how big?

Before this commit:
Found 4 linkages (2 had no P.P. violations) at null count 1
	Linkage 1, cost vector = (UNUSED=1 DIS= 0.05 LEN=6)

After this commit:
Found 2 linkages (2 had no P.P. violations) at null count 1
	Linkage 1, cost vector = (UNUSED=1 DIS= 0.05 LEN=6)

ampli/link-grammar,ampli/link-grammar,opencog/link-grammar,ampli/link-grammar,opencog/link-grammar,linas/link-grammar,linas/link-grammar,opencog/link-grammar,ampli/link-grammar,ampli/link-grammar,linas/link-grammar,ampli/link-grammar,opencog/link-grammar,linas/link-grammar,linas/link-grammar,linas/link-grammar,opencog/link-grammar,linas/link-grammar,opencog/link-grammar,ampli/link-grammar,ampli/link-grammar,opencog/link-grammar,ampli/link-grammar,linas/link-grammar,linas/link-grammar,opencog/link-grammar,opencog/link-grammar