add: task-13, task-14, task-15
mod: refactored task-13.cpp
mod: another yet change
Merge branch 'master' of ssh://github.com/sidorovis/cpp_craft_1013
fix: task-14, incorrect comparison of near values.
add: basis structure for 2nd set of tasks
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
mod: solution of puzzles 2.4 - 2.6
mod: change of build model to required
fix: wrong solution name in _gcc_gen.sh
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
mod: some improvements
mod: move common part of task-24 and task-25 to library.
mod: go away from atoi/atof. boost::lexical_cast is used instead.
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
mod: specific exception classes aren't necessary in such simple projects. It's enough exception class from standard library.
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013
Merge branch 'master' of github.com:sidorovis/cpp_craft_1013