Merge branch 'develop' of https://github.com/wkodate/Jupiter into develop
insert an interval sleep when rss content got
introduce opengraph class to parse open graph in meta tag
add image field in each items
move sql file from rss2db to conf
remove webapp
fix some bugs
remove commetout to write database
add image field
Merge pull request #3 from wkodate/meta

imageフィールドを追加