build: 0.19 release updates on master

as per doc/release-process.md.

Note: On branch-off, these same changes should be made on the release branch, with also these additional changes to both files:

  - set `CLIENT_VERSION_REVISION` to `0`
  - set `CLIENT_VERSION_IS_RELEASE` to `true`

build_msvc/bitcoin_config.h

@@ -14,7 +14,7 @@
 #define CLIENT_VERSION_MAJOR 0
 
 /* Minor version */
-#define CLIENT_VERSION_MINOR 18
+#define CLIENT_VERSION_MINOR 19
 
 /* Build revision */
 #define CLIENT_VERSION_REVISION 99
@@ -346,7 +346,7 @@
 #define PACKAGE_NAME "Bitcoin Core"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "Bitcoin Core 0.18.99"
+#define PACKAGE_STRING "Bitcoin Core 0.19.99"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "bitcoin"
@@ -355,7 +355,7 @@
 #define PACKAGE_URL "https://bitcoincore.org/"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "0.18.99"
+#define PACKAGE_VERSION "0.19.99"
 
 /* Define to necessary symbol if this constant uses a non-standard name on
    your system. */

configure.ac

@@ -1,7 +1,7 @@
 dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
 AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 0)
-define(_CLIENT_VERSION_MINOR, 18)
+define(_CLIENT_VERSION_MINOR, 19)
 define(_CLIENT_VERSION_REVISION, 99)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_RC, 0)