priQ->ArrL
fix bug in PersistentStoreManager.java
Merge branch 'huiyang' of https://github.com/owwlo/web_search_engine_course
priQ->ArrL
Merge branch 'huiyang' of https://github.com/owwlo/web_search_engine_course
fix documentTermFrequency in compressed indexer
add support for numviews and pagerank
Merge branch 'huan' of https://github.com/owwlo/web_search_engine_course
Merge branch 'huan' of https://github.com/owwlo/web_search_engine_course
lambda