Merge branch 'master' of https://github.com/sidorovis/cpp_craft_1013 into week4
Fixed 4_4 test errors
Added thread and date_time libs
Added libs for compiling reasons
Fixed task4_5
Merge branch 'master' of https://github.com/sidorovis/cpp_craft_1013 into week4
Added more universal iterator type definition
Added service functions
Merge branch 'week4' of git://github.com/AndrewZh/cpp_craft_1013 into AndrewZh-week4