added 5 week task
Merge branch 'master' of https://github.com/marozau/cpp_craft_0314
corrected task5_5
Tasks 5_4 and 5_5 complete
Task 5_6 complete
Task 5_6 tweaked to avoid deadlock
Task2 bug fixing
Task3 bug fixing
task2 has been fixed
task3 has been fixed
task2 notes have been fixed
Week 2 corrections
Week 3 corrections
Merge pull request #252 from gost402/task2_corrections

Week 2 corrections
Merge pull request #253 from gost402/task3_corrections

Week 3 corrections
Merge pull request #201 from dmitriysenkovich/master

Corrected task5_5 and added task 5_6
Merge pull request #218 from volchek/week_5

Homework 5 complete
Merge pull request #250 from blez/task2

Task2
Merge pull request #249 from blez/task3

Task3 bug fixing