Bump version # to 1.3.1

Distinguish git clones from released version.

Author: Damian Rouson

CMakeLists.txt

@@ -7,7 +7,7 @@ set ( CMAKE_BUILD_TYPE "Release"
 set_property ( CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS ${CMAKE_CONFIGURATION_TYPES} )
 
 #Name project and specify source languages
-project(opencoarrays VERSION 1.3.0 LANGUAGES C Fortran)
+project(opencoarrays VERSION 1.3.1 LANGUAGES C Fortran)
 
 #Print an error message on an attempt to build inside the source directory tree:
 if ("${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")