question classifier Added

also implemented a Question class
minor issue
Merge remote-tracking branch 'origin/master' into Leslie
some fromat problems causing parsing error fixed

change into utf8
add function get_question to utils
add article_processor

designed for the 4th part (reading test)
now have the function for extracting different part of speech(ex:noun
phrase)
new functions in utils & article_processor
question processor

classfy & pre-processing of different kind of questions
solver for the 4th part

produce the answer of th 4th part
Merge remote-tracking branch 'origin/master' into forMerge

Conflicts:
	utils.py