query pane refactoring step 1
Merge pull request #77 from stoewer/refactoring

Helper classes for name conventions
Merge branch 'master' of github.com:asobolev/gndata-editor
changes according to the comments
Merge pull request #75 from asobolev/master

query pane refactoring step 1
NameConventions: convention for css files
AbstractView: use helpers from NameConventions
DialogView: use helpers from NameConventions
ProjectCtrl: use helpers from NameConventions