Issue #220

Pull request for an issue #220. It turned out more complicated, than I thought. @yegor256 can you help me to simplify it? Should I move a ```SearchRequest``` declaration to another file? There is no repository coordinates in issue search response (http://developer.github.com/v3/search/#search-issues), therefore I parsed it from issue's url (see ```RtSearch.java:134```). Is this ok? And there were wrong line separators again.