This is the application model of a dictionary browser.
Instances of CRDictionaryBrowser use an instances of this class to access a dictionary.
As an example, the application model encapsulates the lookup process and introduces a cache
for performance improvement.
Usually, there is one Application model for all open instance browsers.
See also description of class CRDictionaryBrowser.

	initialize-release
	initializeDictionary: newBrowser

	private
	clearResultCache dictionary: resultCache: resultCacheWithParents:

	updating
	removeDependent: update:

	accessing	top
	addFeature:toChar:
	charOfFeature:
	dictionary
	featureCollectionOfChar:
	featureCollectionWithFeature: Return the collection of all the features that are associated to the same character as aCRFeature is associated to.
	featureCountOfChar:
	featureCountWithFeature: Return the number of features associated to the character aCRFeature is associated to
	lookup:fast:includeParents: Lookup the given feature in the dictionary and update the cache
	removeChar:
	removeFeature:
	renameChar:to:
	resultCache
	resultCacheWithParents

	initialize-release	top
	initializeDictionary:
	newBrowser Create a new browser that shows the contents of this application model

	private	top
	clearResultCache Clear the result cache. There are two result caches: One includes features of the parent dictionary while the other on doesn't.
	dictionary:
	resultCache:
	resultCacheWithParents:

	updating	top
	removeDependent: Remove the given object as one of the receiver's dependents.
	update: Receive a change notice from an object of whom the receiver is a dependent. The default behavior is to do nothing; a subclass might want to change itself in some way.

	instance creation	top
	dictionary: