Bump version to 1.5.2

build-cmake/CMakeLists.txt

 set(PACKAGE protobuf-c)
 set(PACKAGE_NAME protobuf-c)
-set(PACKAGE_VERSION 1.5.1)
+set(PACKAGE_VERSION 1.5.2)
 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],
-        [1.5.1],
+        [1.5.2],
         [https://github.com/protobuf-c/protobuf-c/issues],
         [protobuf-c],
         [https://github.com/protobuf-c/protobuf-c])

protobuf-c/protobuf-c.h

@@ -795,13 +795,13 @@ 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		"1.5.1"
+#define PROTOBUF_C_VERSION		"1.5.2"
 
 /**
  * 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	1005001
+#define PROTOBUF_C_VERSION_NUMBER	1005002
 
 /**
  * The minimum protoc-gen-c version which works with the current version of the