Add script for building documentation.

Update make_release

Minor documentation fixes.

Change-Id: I1248ec3f58be66b5929aee6f2aa392c15d53ed83
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ad67e25..eac5816 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,8 +73,8 @@
 #
 # For versions without ABI changes, bump the smallest number in CERES_VERSION,
 # but leave the CERES_ABI_VERSION unchanged.
-SET(CERES_VERSION 1.4.0)
-SET(CERES_ABI_VERSION 1.4.0)
+SET(CERES_VERSION 1.5.0)
+SET(CERES_ABI_VERSION 1.5.0)
 
 ENABLE_TESTING()