lab 6
Merge branch 'master' of https://github.com/MinskLab2012/2013-JUL-Module-7
Merge branch 'master' of https://github.com/MinskLab2012/2013-JUL-Module-7
Merge branch 'master' of https://github.com/MinskLab2012/2013-JUL-Module-7
labs