Add yet more iterations to MinerUTest::test_SodaDrinker_incremental()
Add yet more iterations to MinerUTest::test_SodaDrinker_incremental()

Because 1000 iterations wasn't quite robust enough.

AmeBel/opencog,andre-senna/opencog,andre-senna/opencog,AmeBel/opencog,andre-senna/opencog,andre-senna/opencog,andre-senna/opencog,AmeBel/opencog,andre-senna/opencog,AmeBel/opencog,AmeBel/opencog,AmeBel/opencog,andre-senna/opencog,AmeBel/opencog