add jshint
follow jshint
add jshint task
Merge pull request #18 from tazima/topic-jshint

introduce jshint
posts crawl job
add comment
extract `getFeedMetaData` job test
extract  job test
remove comment
add test for merging _feed_posts of Feed model
rm old file
rm old file
follow jshint
Merge branch 'topic-crawl-job' of https://github.com/tazima/kinjiro into topic-crawl-job

Conflicts:
	server/jobs/get-posts/index.js
	server/jobs/get-posts/post-writable-stream.js
	server/jobs/get-posts/test/get-posts-test.js
	server/jobs/get-posts/test/post-writable-stream-test.js