Github need to have search of files feature in repo

I will be lovely if Github create search in repo at least by file name (with support of matching by Camel case), it will be very useful during sources investigation. Developers always search for files, and gihub is not just a web hosting - it is online editor, and allow contribution to project without clone to local PC.

This feature exists - https://github.com/blog/793-introducing-the-file-finder just press "t" and search appear.