Bump version to 5.7.0

Author: rocallahan

CMakeLists.txt

@@ -34,7 +34,7 @@ option(INSTALL_TESTSUITE "Install the testsuite")
 # debian is happy with it.  However, "_" is illegal in debs, while RPM
 # is cool with it.  Sigh.
 set(rr_VERSION_MAJOR 5)
-set(rr_VERSION_MINOR 6)
+set(rr_VERSION_MINOR 7)
 set(rr_VERSION_PATCH 0)
 
 if(ANDROID)