[API] Multiple Backtracking Finder: renamed setMaxScore() as setScoreThreshold()
[INTERNAL] Search/Join: used setScoreThreshold()
[FIX] Multiple Index Finder: used setScoreThreshold()
[API] Multiple Index Finder: implemented textIterator() and patternIterator()
[TEST] Multiple Index Finder: used text/patternIterator()
Merge pull request #330 from esiragusa/feature/find2

Multiple Finder API