Ruby basics
merge
Add slides to RubyBasics
oop
oop hierarchy, self, singleton method
oop extend
class hierarchy schema image to assets
Merge pull request #7 from evsyukovmv/oop

oop
oop improve with exceptions
Merge pull request #8 from evsyukovmv/oop

oop improve with exceptions
Small fixes for OOP
Merge pull request #1 from RubyGarage/master

new commits