Added Model and View
mvvm first step
Nohing
view + viewModel tests
view binded
some changes performed
Laba #2 Commit #1
some corrects
travis rebuild
Added ViewModel
First step done
lab1 code was prepared to lab2
form for calculator was added
Added folders
defects fixed
first version lab2-mvvn-fraction-calculator
Merge pull request #77 from AnnaSagina/lab2-mvvm-sagina

Сагина - Лабораторная работа #2
Core converted into Model.
lab2-mvvm full.
Change directory for Model