added javadoc to all fuctions
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
Merge branch 'master' of https://github.com/salnik/let375.git
A.1->A.3