Move sources to src dir
Merge pull request #1 from ibatullin/ui

Model-View style
Merge pull request #2 from ibatullin/move-sources

Move sources
project files location fix
Add 3dparty. Move application sources to app dir.
Merge pull request #4 from ibatullin/move-sources

Add 3dparty. Move application sources to app dir.
Create About menu