1. Add a version history
2. Update copyright years across the code base
3. Run format_all.sh
4. Update version strings from 2.1.0 to 2.2.0 in the docs and
elsewhere.
Change-Id: I46d8d479d54bd6002d532785e67342106e73c9ac
- Previously we had the Ceres version defined in two places, one in
include/ceres/version.h, and one in the main CMakeLists.
- Now the main CMakeLists reads the Ceres version directly from
version.h, as does the make_release script, so that we have a single
place (version.h) in which the current Ceres version is defined.
Change-Id: Ie80aa7d38f5b576d3ed4d6109dd699f565c91027