add twitter tweet plugin
mv test yaml
add plugin text2feed
add filter plugin, rand.
Merge pull request #120 from soramugi/subscription-text

add plugin text2feed
Merge pull request #121 from soramugi/publish-twitter

Publish twitter
Merge pull request #122 from soramugi/filter-rand

add filter plugin, rand.
296 Remove imcomplete tweet keys
297 Suppress the integration test messages
298 Improvement test, refactoring to Filter::Rand
299 Fix typo