Fix boto import error under Jessie testing environment
Fix boto import error under Jessie testing environment

pawelmhm/scrapy,kmike/scrapy,dangra/scrapy,elacuesta/scrapy,pawelmhm/scrapy,starrify/scrapy,scrapy/scrapy,pawelmhm/scrapy,eLRuLL/scrapy,finfish/scrapy,elacuesta/scrapy,starrify/scrapy,pablohoffman/scrapy,scrapy/scrapy,finfish/scrapy,scrapy/scrapy,dangra/scrapy,finfish/scrapy,wujuguang/scrapy,kmike/scrapy,eLRuLL/scrapy,elacuesta/scrapy,kmike/scrapy,pablohoffman/scrapy,dangra/scrapy,wujuguang/scrapy,pablohoffman/scrapy,starrify/scrapy,wujuguang/scrapy,eLRuLL/scrapy