modified:   src/qdropboxaccount.cpp
	modified:   src/qdropboxaccount.h
	modified:   src/qdropboxfileinfo.cpp
	modified:   src/qdropboxfileinfo.h
	modified:   src/qdropboxjson.cpp
	modified:   src/qdropboxjson.h
const Constructor
Merge pull request #3 from leptonverde/master

const ClassName &other. Just added const