lib/chinese_t2s/middleware, get params by env[rack.request.query_hash] in all cases
lib/chinese_t2s/middleware, update case statement
lib/chinese_t2s/middleware, re-write get set_lang and store set_lang in env[rack.session] before @app.call
Thanks @godfat 's comment!
lib/chinese_t2s#get_words and #get_phases, re-write to use File.open().each_line
Thanks @godfat 's comment!
Merge branch 'params'