CONFIG: adjust boost,CGAL versions

etc/config.csh/CGAL

@@ -51,8 +51,8 @@
 #------------------------------------------------------------------------------
 # USER EDITABLE PART: Changes made here may be lost with the next upgrade
 
-set boost_version=boost_1_62_0
-set cgal_version=CGAL-4.9
+set boost_version=boost_1_64_0
+set cgal_version=CGAL-4.9.1
 
 setenv BOOST_ARCH_PATH $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$boost_version
 setenv CGAL_ARCH_PATH $WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$cgal_version

etc/config.sh/CGAL

@@ -50,8 +50,8 @@
 #------------------------------------------------------------------------------
 # USER EDITABLE PART: Changes made here may be lost with the next upgrade
 
-boost_version=boost_1_62_0
-cgal_version=CGAL-4.9
+boost_version=boost_1_64_0
+cgal_version=CGAL-4.9.1
 
 export BOOST_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$boost_version
 export CGAL_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$cgal_version