Bug 32893 Workspace Compatibility Problems 2.0 -> 2.1
Build 2.1 RC1 This PR collects problems related to opening a 2.0 workspace with 2.1.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
store.setDefault(PreferenceConstants.LINK_TYPEHIERARCHY_TO_EDITOR, false);
		store.setDefault(PreferenceConstants.OPEN_TYPE_HIERARCHY, PreferenceConstants.OPEN_TYPE_HIERARCHY_IN_VIEW_PART);
		store.setDefault(PreferenceConstants.DOUBLE_CLICK, PreferenceConstants.DOUBLE_CLICK_EXPANDS);
		store.setDefault(PreferenceConstants.UPDATE_JAVA_VIEWS, PreferenceConstants.UPDATE_WHILE_EDITING);	
		
		store.setDefault(PreferenceConstants.LINK_BROWSING_PROJECTS_TO_EDITOR, true);
		store.setDefault(PreferenceConstants.LINK_BROWSING_PACKAGES_TO_EDITOR, true);
		store.setDefault(PreferenceConstants.LINK_BROWSING_TYPES_TO_EDITOR, true);
		store.setDefault(PreferenceConstants.LINK_BROWSING_MEMBERS_TO_EDITOR, true);
		
		store.setDefault(PreferenceConstants.APPEARANCE_COMPRESS_PACKAGE_NAMES, false);
		store.setDefault(PreferenceConstants.APPEARANCE_METHOD_RETURNTYPE, false);
		store.setDefault(PreferenceConstants.SHOW_CU_CHILDREN, true);
		store.setDefault(PreferenceConstants.APPEARANCE_OVERRIDE_INDICATOR, true);
		store.setDefault(PreferenceConstants.BROWSING_STACK_VERTICALLY, false);
		store.setDefault(PreferenceConstants.APPEARANCE_PKG_NAME_PATTERN_FOR_PKG_VIEW, ""); 
		store.setDefault(PreferenceConstants.APPEARANCE_FOLD_PACKAGES_IN_PACKAGE_EXPLORER, true);
		
		store.setDefault(PreferenceConstants.ORGIMPORTS_IMPORTORDER, "java;javax;org;com"); 
		store.setDefault(PreferenceConstants.ORGIMPORTS_ONDEMANDTHRESHOLD, 99);
		store.setDefault(PreferenceConstants.ORGIMPORTS_IGNORELOWERCASE, true);
		
		
		
		
		
		
		store.setDefault(PreferenceConstants.REFACTOR_ERROR_PAGE_SEVERITY_THRESHOLD, PreferenceConstants.REFACTOR_ERROR_SEVERITY);
		store.setDefault(PreferenceConstants.REFACTOR_SAVE_ALL_EDITORS, false);