add stopwords; mod sh script
IvtiByteMap support for Compressed
Merge branch 'huan' of https://github.com/owwlo/web_search_engine_course

Conflicts:
	src/edu/nyu/cs/cs2580/IndexerInvertedCompressed.java
HW3 RC
Merge branch 'huiyang' of https://github.com/owwlo/web_search_engine_course
RC1 for HW3
update