Release new version 0.7.1

[Germey]

@rmax From 0.6.8 -> 0.7.1:

• Support priority start_urls. https://github.com/rmax/scrapy-redis/pull/172
• Support init batch tasks. https://github.com/rmax/scrapy-redis/pull/176
• Fixes datetime parsing error for redis-py 3.x. https://github.com/rmax/scrapy-redis/pull/190
• Add support for stats extensions. https://github.com/rmax/scrapy-redis/pull/186
• Support using pipeline when read redis lit queue. https://github.com/rmax/scrapy-redis/pull/169
• Support to configure different redis-server db by adding REDIS_DB https://github.com/rmax/scrapy-redis/pull/166
• Add option to decode responses in python3 #146
• Add support for making dupefilter support create from spider #83
• Fix example: update dmoz spider domain #164

[Germey]

https://pypi.org/project/scrapy-redis/