Merge pull request #1 from antirek/default

Create README.md
Tool for convertation json to mongodb has been added. Helpers directory has been moved to root tools directory.
Merge branch 'default' of https://github.com/alexander-vl-belokon/numcap into default
Move files.
Methods for search operator and region by number in mondo db have been realised. Bug with record to mongodb, where  phone codes and phone capacity boundaries are inserted as string but not as integer.