Bug 23459 add preference option to turn off variable guessing on method completion
request from Adam
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
PreferenceConverter.setDefault(store, IJavaColorConstants.JAVADOC_DEFAULT, new RGB(63, 95, 191));
		store.setDefault(IJavaColorConstants.JAVADOC_DEFAULT + "_bold", false);		 
		
		store.setDefault(ContentAssistPreference.AUTOACTIVATION, true);
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_DELAY, 500);
		
		store.setDefault(ContentAssistPreference.AUTOINSERT, true);
		PreferenceConverter.setDefault(store, ContentAssistPreference.PROPOSALS_BACKGROUND, new RGB(254, 241, 233));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PROPOSALS_FOREGROUND, new RGB(0, 0, 0));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PARAMETERS_BACKGROUND, new RGB(254, 241, 233));
		PreferenceConverter.setDefault(store, ContentAssistPreference.PARAMETERS_FOREGROUND, new RGB(0, 0, 0));
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVA, "."); 
		store.setDefault(ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVADOC, "@"); 
		store.setDefault(ContentAssistPreference.SHOW_VISIBLE_PROPOSALS, true);
		store.setDefault(ContentAssistPreference.CASE_SENSITIVITY, false);
		store.setDefault(ContentAssistPreference.ORDER_PROPOSALS, false);
		store.setDefault(ContentAssistPreference.ADD_IMPORT, true);
		store.setDefault(ContentAssistPreference.FILL_METHOD_ARGUMENTS, false);
		store.setDefault(CompilationUnitEditor.CLOSE_STRINGS, true);
		store.setDefault(CompilationUnitEditor.CLOSE_BRACKETS, true);
		store.setDefault(CompilationUnitEditor.CLOSE_JAVADOCS, true);
		store.setDefault(CompilationUnitEditor.SKIP_CLOSING_QUOTES, true);
		store.setDefault(CompilationUnitEditor.SKIP_CLOSING_BRACKETS, true);
		store.setDefault(CompilationUnitEditor.WRAP_STRINGS, true);
		store.setDefault(CompilationUnitEditor.ADD_JAVADOC_TAGS, true);
	}
	/*
	 * @see IWorkbenchPreferencePage#init()
	 */