add LeakyTraits test case for singleton unittest
LRUCache initial structure & its unittest
modified LRUCache
1.change LRUCache template argument Value to Entry
2.change Map in TreeMap & HashMap to MapType.
3.add property fields
4.add Put & erase & Evict.
add RValue-support for LRUCache::Put. && update its unittest
add include-file cstddef for nullptr_t in scoped_handle.h.
modified in LRUCache:
1. some bug fixed
2. add partial unittest for Put funtion.
add LRUCache::Get
tmp save for LRUCache
modified in lru_cache:
1.add move-semantics
2.support for evicting mulptile entries at once.