Bump version to 3.1.2 and lib version to 30.2.0

No ABI changes (additional enum typedefs from PR #1134, but that
shouldn't affect the ABI).

Signed-off-by: Cary Phillips <cary@ilm.com>

CMakeLists.txt

@@ -19,7 +19,7 @@ endif()
 # configuration files
 #######################################
 
-project(OpenEXR VERSION 3.1.1 LANGUAGES C CXX)
+project(OpenEXR VERSION 3.1.2 LANGUAGES C CXX)
 
 set(OPENEXR_VERSION_RELEASE_TYPE "" CACHE STRING "Extra version tag string for OpenEXR build, such as -dev, -beta1, etc.")
 
@@ -44,7 +44,7 @@ set(OPENEXR_VERSION_API "${OpenEXR_VERSION_MAJOR}_${OpenEXR_VERSION_MINOR}")
 #   3. API changed:   CURRENT+1.0.0
 #
 set(OPENEXR_LIBTOOL_CURRENT 30)
-set(OPENEXR_LIBTOOL_REVISION 1)
+set(OPENEXR_LIBTOOL_REVISION 2)
 set(OPENEXR_LIBTOOL_AGE 0)
 set(OPENEXR_LIB_VERSION "${OPENEXR_LIBTOOL_CURRENT}.${OPENEXR_LIBTOOL_REVISION}.${OPENEXR_LIBTOOL_AGE}")
 set(OPENEXR_LIB_SOVERSION ${OPENEXR_LIBTOOL_CURRENT})