Low-level model entity interface for meaning representation
Low-level model entity interface for wordrepresentation
Model entity interface for word article representation

Word article - word with its meaning. It is used for determination the right meaning for every word.
Merge branch 'djachenko'

* djachenko:
  Model entity interface for word article representation
  Low-level model entity interface for wordrepresentation
  Low-level model entity interface for meaning representation
Model entity interface for card representation

It keeps word and three meanings, with right being marked. Initializing is performed with Article in order to determine what meaning is correct.
Entities initializers added
View and controller for card representation.

It is configured by card. Also delegate is required for handling meaning choose. Now it works without delegate, just logging index of chosen option.
CardVC linked into project. It appears after choosing "New game" option in main menu.

AppDelegate was chnged in order to move project to NavigationController.
Merge branch 'master' into ershov

* master:
  CardVC linked into project. It appears after choosing "New game" option in main menu.
  View and controller for card representation.
  Entities initializers added
  Model entity interface for card representation
  Model entity interface for word article representation
  Low-level model entity interface for wordrepresentation
  Low-level model entity interface for meaning representation

Conflicts:
	src/Erundopel/Erundopel.xcodeproj/project.pbxproj
	src/Erundopel/Erundopel/AppDelegate.m