- This could result in potentially confusing output if dependencies
  were found with the QUIET option: "XXX not found due to ...", followed
  by "found <part of> XXX".
- If find_package() was called with REQUIRED, then a FATAL_ERROR was
  triggered in the xxx_not_found() macros, resulting in early
  termination.

Change-Id: Ibf59afd10067b9debd1a5e15f735a41b61bed52e

- Updated to new CMake style where function names are all lowercase,
  this will be backwards compatible as CMake function names are
  case insensitive.
- Updated using Emacs' M-x unscreamify-cmake-buffer.

Change-Id: If7219816f560270e59212813aeb021353a64a0e2

Change-Id: If2e9999b04550269c94a86b8512d9dcc2842b91d

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

- As part of adding support for detection of non-standard Homebrew
  install on OSX, an Eigen specific search directory was added to the
  search path in the main CMakeLists.  This commit moves that search
  into FindEigen.cmake.

Change-Id: Ia6142211961a0d1fdddeea77b83438e4ef94434f

- Now when find_package() is called for a dependency without the
  REQUIRED or QUIET qualifiers, we emit no priority (above STATUS, but
  below WARNING) messages and continue.

Change-Id: I8cdeda7a8f6c91d45fb7f24fb366244c6c9b66e1

- Previously we used message priority: SEND_ERROR when a package was
  not found and find_package() was called without QUIET or REQUIRED,
  which emits an error message, and prevents generation, but continues
  configuration.
- The fact SEND_ERROR induces an error message was confusing for users
  as it implies that something bad has happened and they cannot
  continue, when in fact we were disabling the option in question
  and were thus able to continue, all they had to do was re-configure.

- This commit also reorders the search lists for includes/libraries
  so that we always search user installed locations (e.g. /usr/local)
  before system installed locations.  Thus we will now always prefer
  a user install to a system install if both are available, which is
  likely to be the users desired intention.

Change-Id: Ide84919f27d3373f31282f70c685720cd77a6723

- Adding FindPackage scripts for all of Ceres dependencies.
- Moving depend.cmake contents to CeresConfig.cmake and cleaning up
  search for Ceres & required dependencies, no longer push Ceres
  options into client.
- Fixing uninstall to remove ceres include root directory.
- Fixing main CMakeLists to install miniglog header if enabled.
- Making miniglog library shared/static with Ceres library.

Change-Id: If926bebd11720230c5136597ccba672394ed9777