Handle dynamic inserted dashboard iframe in ReBlog Extractor

In Tumblr's post, dashboard iframe sometimes seems to be inserted by document.write().
So Extractors.ReBlog.getFrameUrl() needs to be considered the case.
Refactoring: extractByPage() should use queryHash()
Fix bug that cannot install CRLF patch
Merge pull request #186 from syoichi/pr26-bugfix

Handle dynamic inserted dashboard iframe in ReBlog Extractor