use git submodule for ceres

.gitignore

@@ -8,5 +8,4 @@ odm_texturing-build/
 *.user
 cmvs.tar.gz
 parallel.tar.bz2
-pcl.tar.gz
-ceres-solver.tar.gz
+pcl.tar.gz

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "src/bundler"]
 	path = src/bundler
 	url = https://github.com/chris-cooper/bundler_sfm
+[submodule "src/ceres-solver"]
+	path = src/ceres-solver
+	url = https://ceres-solver.googlesource.com/ceres-solver

install.sh

@@ -173,7 +173,6 @@ vlfeat.tar.gz http://www.vlfeat.org/download/vlfeat-0.9.13-bin.tar.gz
 cmvs.tar.gz http://www.di.ens.fr/cmvs/cmvs-fix2.tar.gz
 graclus.tar.gz http://smathermather.github.io/BundlerTools/patched_files/src/graclus/graclus1.2.tar.gz
 pcl.tar.gz https://github.com/PointCloudLibrary/pcl/archive/pcl-1.7.2.tar.gz
-ceres-solver.tar.gz http://ceres-solver.org/ceres-solver-1.10.0.tar.gz
 EOF
 
 echo "  < done - `date`"
@@ -201,7 +200,6 @@ mv -f parallel-20141022   "$PARALLEL_PATH"
 mv -f PoissonRecon        "$PSR_PATH"
 mv -f cmvs                "$CMVS_PATH"
 mv -f pcl-pcl-1.7.2       "$PCL_PATH"
-mv -f ceres-solver-1.10.0 "$CERES_PATH"
 
 echo "  < done - `date`"
 

src/ceres-solver

@@ -0,0 +1 @@
+Subproject commit b0696f6269d12abc6ea63083d565fe2ec8172da9