Method used to process multiple words query is updated and '-' function is added
Merge https://github.com/TatianaGaintseva/smartdict-1

Conflicts:
	Yo-Yo/algo.cpp
	Yo-Yo/algo.cpp~
	Yo-Yo/algo.h
	Yo-Yo/algo.h~
	Yo-Yo/indexer.cpp
	Yo-Yo/indexer.cpp~
	Yo-Yo/indexer.h
	Yo-Yo/indexer.h~
	Yo-Yo/main
	Yo-Yo/main.cpp
	Yo-Yo/main.cpp~