bump version 4.0.4
Merge branch 'master' of github.com:tdiary/tdiary-contrib
remove trailing whitespaces
Merge pull request #86 from tdiary/remove-trailing-whitespaces

行末の空白を一括削除しました
Merge branch 'master' of github.com:tdiary/tdiary-contrib
Minimal implmentation
Make sure API key is not empty
Add configuration items to decide when to send Yo
Use net/http instead of open-uri in prep to post requests
Implement yo_update_access_api()
Send Yo from configuration interface
Timeout when accessing Yo API
Stream line error handling
Rescue SocketError
Clarify todos
Change behaviour of yo_update_api_key

When API key is not set, yo_update_api_key() returns nil
instead of raising an error
Fix URI of endpoint
Add a todo item
Send Yo on updates
Add items to do