Make the current library version beta17, in preparation of the next release.

configure.ac

@@ -1,6 +1,6 @@
 # $Id$
 
-AC_INIT(libcaca, 0.99.beta16)
+AC_INIT(libcaca, 0.99.beta17)
 AC_PREREQ(2.50)
 AC_CONFIG_AUX_DIR(.auto)
 AC_CANONICAL_SYSTEM
@@ -11,7 +11,7 @@ AM_CONFIG_HEADER(config.h)
 
 LT_MAJOR="0"
 LT_MINOR="99"
-LT_MICRO="16"
+LT_MICRO="17"
 AC_SUBST(LT_MAJOR)
 AC_SUBST(LT_MINOR)
 AC_SUBST(LT_MICRO)