Release version 3.1.0-rc1

Author: rodarima

configure.ac

@@ -1,8 +1,6 @@
 dnl Process this file with aclocal, autoconf and automake.
 
-# "grows2" (for second phase of GROWS) to distinguish this version
-# from version 3.1-dev. Remember to remove this again after merging.
-AC_INIT([dillo], [3.1-dev])
+AC_INIT([dillo], [3.1.0-rc1])
 
 dnl Detect the canonical target build environment
 AC_CANONICAL_TARGET