Replace broken CERES_VERSION macro

This replaces the broken CERES_VERSION and CERES_ABI_VERSION
defines with a different set, including integer versions for
MAJOR/MINOR/etc.

This also adds the Ceres version to Solver::FullReport().

Example report from powell:

Ceres Solver v1.10.0 Solve Report
----------------------------------
                                     Original                  Reduced
Parameter blocks                            4                        4
Parameters                                  4                        4
Residual blocks                             4                        4
Residual                                    4                        4

Minimizer                        TRUST_REGION

Dense linear algebra library            EIGEN
Trust region strategy     LEVENBERG_MARQUARDT

                                        Given                     Used
Linear solver                        DENSE_QR                 DENSE_QR
Threads                                     1                        1
Linear solver threads                       1                        1

Cost:
Initial                          1.075000e+02
Final                            1.791438e-14
Change                           1.075000e+02

Minimizer iterations                       14
Successful steps                           14
Unsuccessful steps                          0

Time (in seconds):
Preprocessor                            0.001

  Residual evaluation                   0.000
  Jacobian evaluation                   0.000
  Linear solver                         0.000
Minimizer                               0.001

Postprocessor                           0.000
Total                                   0.003

Change-Id: I5bf0e8023693e9195276b1f1e881b13121ba1196
Termination:                      CONVERGENCE (Gradient tolerance reached. Gradient max norm: 3.642190e-11 <= 1.000000e-10)

include/ceres/ceres.h

@@ -1,5 +1,5 @@
 // Ceres Solver - A fast non-linear least squares minimizer
-// Copyright 2010, 2011, 2012 Google Inc. All rights reserved.
+// Copyright 2014 Google Inc. All rights reserved.
 // http://code.google.com/p/ceres-solver/
 //
 // Redistribution and use in source and binary forms, with or without
@@ -34,9 +34,6 @@
 #ifndef CERES_PUBLIC_CERES_H_
 #define CERES_PUBLIC_CERES_H_
 
-#define CERES_VERSION 1.9.0
-#define CERES_ABI_VERSION 1.9.0
-
 #include "ceres/autodiff_cost_function.h"
 #include "ceres/autodiff_local_parameterization.h"
 #include "ceres/cost_function.h"
@@ -56,5 +53,6 @@
 #include "ceres/sized_cost_function.h"
 #include "ceres/solver.h"
 #include "ceres/types.h"
+#include "ceres/version.h"
 
 #endif  // CERES_PUBLIC_CERES_H_

include/ceres/version.h

@@ -0,0 +1,49 @@
+// Ceres Solver - A fast non-linear least squares minimizer
+// Copyright 2014 Google Inc. All rights reserved.
+// http://code.google.com/p/ceres-solver/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors may be
+//   used to endorse or promote products derived from this software without
+//   specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: mierle@gmail.com (Keir Mierle)
+
+#ifndef CERES_PUBLIC_VERSION_H_
+#define CERES_PUBLIC_VERSION_H_
+
+#define CERES_VERSION_MAJOR 1
+#define CERES_VERSION_MINOR 10
+#define CERES_VERSION_REVISION 0
+#define CERES_VERSION_ABI 1
+
+// Classic CPP stringifcation; the extra level of indirection allows the
+// preprocessor to expand the macro before being converted to a string.
+#define CERES_TO_STRING_HELPER(x) #x
+#define CERES_TO_STRING(x) CERES_TO_STRING_HELPER(x)
+
+// The Ceres version as a string; for example "1.9.0".
+#define CERES_VERSION_STRING CERES_TO_STRING(CERES_VERSION_MAJOR) "." \
+                             CERES_TO_STRING(CERES_VERSION_MINOR) "." \
+                             CERES_TO_STRING(CERES_VERSION_REVISION)
+
+#endif  // CERES_PUBLIC_VERSION_H_