Merge pull request #1 from pybursa/master

update
added hw4
renamed
removed old files
updated documentation
Add   hw4_ home works
Merge remote-tracking branch 'upstream/master'
Test commit
Test commit
hw3
homework 3
test
added previous hometasks
Merge branch 'master' of https://github.com/Alrem/homeworks
<Homework#4, Zadanija 1 i 2 + test + starter>
added solutions per link provided
updated tests
updated tests
add test file
Anna Karnaukh HW3