Bump version to 1.4.0

build-cmake/CMakeLists.txt

 SET(PACKAGE protobuf-c)
 SET(PACKAGE_NAME protobuf-c)
-SET(PACKAGE_VERSION 1.3.3)
+SET(PACKAGE_VERSION 1.4.0)
 SET(PACKAGE_URL https://github.com/protobuf-c/protobuf-c)
 SET(PACKAGE_DESCRIPTION "Protocol Buffers implementation in C")
 

configure.ac

 AC_PREREQ(2.63)
 
 AC_INIT([protobuf-c],
-        [1.3.3],
+        [1.4.0],
         [https://github.com/protobuf-c/protobuf-c/issues],
         [protobuf-c],
         [https://github.com/protobuf-c/protobuf-c])

protobuf-c/protobuf-c.h

@@ -794,13 +794,13 @@ protobuf_c_version_number(void);
  * The version of the protobuf-c headers, represented as a string using the same
  * format as protobuf_c_version().
  */
-#define PROTOBUF_C_VERSION		"1.3.3"
+#define PROTOBUF_C_VERSION		"1.4.0"
 
 /**
  * The version of the protobuf-c headers, represented as an integer using the
  * same format as protobuf_c_version_number().
  */
-#define PROTOBUF_C_VERSION_NUMBER	1003003
+#define PROTOBUF_C_VERSION_NUMBER	1004000
 
 /**
  * The minimum protoc-c version which works with the current version of the