[FIX] Multiple Finder: set pattern iterator
[FIX] Index Finder: added a missing termination condition in backtracking
[FIX] FMIndex: fixed LF()
[FIX] StringSet: removed mispelled/duplicated files
Merge branch 'fix/index' into develop

* fix/index:
  [FIX] FMIndex: fixed LF()
  [FIX] Index Finder: added a missing termination condition in backtracking
  [FIX] Multiple Finder: set pattern iterator
Merge branch 'fix/stringset_files' into develop

* fix/stringset_files:
  [FIX] StringSet: removed mispelled/duplicated files