Sphinx and CMake, based on this example:
   http://ericscottbarr.com/blog/2012/03/sphinx-and-cmake-beautiful-documentation-for-c-projects/

The 'docs/CMakeLists.txt' file was deleted in this commit: 0abfb8f46f534b05413bb4d64b960d6fd0a9befb

Thanks to Arnaud Gelas, he has passed some links:
   https://github.com/InsightSoftwareConsortium/ITKExamples/blob/master/CMake/FindSphinx.cmake
   https://github.com/InsightSoftwareConsortium/ITKExamples/blob/master/CMakeLists.txt#L120-L154

Change-Id: Ic65e7f8ec5280d1e71a897a144417a21761c5553
diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt
new file mode 100644
index 0000000..6ebeaf1
--- /dev/null
+++ b/docs/CMakeLists.txt
@@ -0,0 +1 @@
+ADD_SUBDIRECTORY(source)
diff --git a/docs/source/CMakeLists.txt b/docs/source/CMakeLists.txt
new file mode 100644
index 0000000..f553a61
--- /dev/null
+++ b/docs/source/CMakeLists.txt
@@ -0,0 +1,19 @@
+FIND_PACKAGE(Sphinx REQUIRED)
+
+# HTML output directory
+SET(SPHINX_HTML_DIR "${CMAKE_BINARY_DIR}/docs/html")
+
+# Install documentation
+INSTALL(DIRECTORY ${SPHINX_HTML_DIR}
+        DESTINATION ceres/doc
+        COMPONENT Doc
+        PATTERN "${SPHINX_HTML_DIR}/*")
+
+# Building using 'make_docs.py' python script
+ADD_CUSTOM_TARGET(project_docs ALL
+                  python
+                  "${CMAKE_SOURCE_DIR}/scripts/make_docs.py"
+                  "${CMAKE_SOURCE_DIR}"
+                  "${CMAKE_BINARY_DIR}/docs"
+                  "${SPHINX_EXECUTABLE}"
+                  COMMENT "Building HTML documentation with Sphinx")
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 7fa6641..e114301 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -48,7 +48,7 @@
 # built documents.
 #
 # The short X.Y version.
-version = '1.5.0'
+version = '1.5'
 # The full version, including alpha/beta/rc tags.
 release = '1.5.0'