Set mainlaine version to 0.5-dev.

c++/configure.ac

 ## Process this file with autoconf to produce configure.
 
-AC_INIT([Capn Proto],[0.4-dev],[capnproto@googlegroups.com],[capnproto-c++])
+AC_INIT([Capn Proto],[0.5-dev],[capnproto@googlegroups.com],[capnproto-c++])
 
 AC_CONFIG_SRCDIR([src/capnp/layout.c++])
 AC_CONFIG_AUX_DIR([build-aux])

c++/src/capnp/c++.capnp.h

@@ -6,7 +6,7 @@
 
 #include <capnp/generated-header-support.h>
 
-#if CAPNP_VERSION != 4000
+#if CAPNP_VERSION != 5000
 #error "Version mismatch between generated code and library headers.  You must use the same version of the Cap'n Proto compiler and library."
 #endif
 

c++/src/capnp/common.h

@@ -34,7 +34,7 @@
 namespace capnp {
 
 #define CAPNP_VERSION_MAJOR 0
-#define CAPNP_VERSION_MINOR 4
+#define CAPNP_VERSION_MINOR 5
 #define CAPNP_VERSION_MICRO 0
 
 #define CAPNP_VERSION \

c++/src/capnp/compiler/grammar.capnp.h

@@ -6,7 +6,7 @@
 
 #include <capnp/generated-header-support.h>
 
-#if CAPNP_VERSION != 4000
+#if CAPNP_VERSION != 5000
 #error "Version mismatch between generated code and library headers.  You must use the same version of the Cap'n Proto compiler and library."
 #endif
 

c++/src/capnp/compiler/lexer.capnp.h

@@ -6,7 +6,7 @@
 
 #include <capnp/generated-header-support.h>
 
-#if CAPNP_VERSION != 4000
+#if CAPNP_VERSION != 5000
 #error "Version mismatch between generated code and library headers.  You must use the same version of the Cap'n Proto compiler and library."
 #endif
 

c++/src/capnp/schema.capnp.h

@@ -6,7 +6,7 @@
 
 #include <capnp/generated-header-support.h>
 
-#if CAPNP_VERSION != 4000
+#if CAPNP_VERSION != 5000
 #error "Version mismatch between generated code and library headers.  You must use the same version of the Cap'n Proto compiler and library."
 #endif