render post's pubdate
test pass
Merge pull request #20 from tazima/topic-render-post-item

render post's pubdate
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
posts crawl job
extract  job test
add test for merging _feed_posts of Feed model
follow jshint
Merge branch 'topic-crawl-job' of github.com:tazima/kinjiro into topic-crawl-job

Conflicts:
	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