Use chrome.runtime API instead of old APIs

chrome.runtime API is available in Content Script also.
Add @tanabe to Taberareloo Dev Team
Add Patch function
Support patches for content script
Add metadata and change a file extension to .tbrl.js
Refactoring
Display the version of each patch
Fix a bug with an invalid format file
Add a warning for a metadata JSON parse error
Missed timeout for notifications
Change notify to alert
Support notification onclose
Missed timeout at google+ communities notification
Merge pull request #174 from YungSang/topic2

Missed timeout at google+ communities notification
Merge pull request #173 from YungSang/topic

Support notification onclose
Merge pull request #171 from syoichi/pr24-runtime

Use chrome.runtime API instead of old APIs
Merge pull request #172 from YungSang/patch

Add Patch Function