Since Ceres is moving to using GitHub for issues, and the Google
Code URL in the current copyright header will soon become invalid,
update all the headers.
Change-Id: I1fce70375d1bcf098591f07b4d8f01a5c1e0789c
Using Ceres in your application involves linking several dependent
libraries, depending on how you compiled Ceres. The example makes
it easier for users to leverage Ceres in their applications.
Change-Id: I6331fd9c6e36c3eac464be2a7a6b905cc76ed843