Fix syntax typo in wrapper.dart
Fix expand in _ObservableImmutableListView
Fix signature of invalidate in CachingFlagCacheWrapper
Remove obsolete namedArguments workaround in DynamicEntity
Declare library in streamy_test.dart; missing declaration causes compiler warnings;
Add missing _freeze() and isFrozen in EmptyEntity and _ErrorEntity
Merge pull request #107 from yjbanov/fix-typo-in-wrapper

Miscellaneous fixes: one for a show-stopping typo, the rest are compiler warnings clean-up