mariadb: bump to major version 10.4

Highlights:

- Bump from 10.2.26 to 10.4.10
- auth_pam got replaced with never version, old one still available as
  auth_pam_v1
- semisync plugins were merged into the core
- Upstream now installs symlinks for binaries with mariadb prefix. To
  accommodate that this commit updates Package/mariadb/install/bin
  accordingly.
- Patches are updated with new ones from Debian and Arch (thanks!)
- libedit patch dropped because it's upstream now.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

utils/mariadb/patches/160-mips-machine.patch

@@ -1,17 +1,13 @@
-Description: Fix DEFAULT_MACHINE on mips
- The DEFAULT_MACHINE constant is calculated from the CMAKE_SYSTEM_PROCESSOR
- variable which contains the processor which built mariadb. Since most Debian
- buildds run on 64-bit hardware even though they build 32-bit binaries,
- DEFAULT_MACHINE previously contained "mips64" on 32-bit builds. This confuses
- some mroonga tests which rely on DEFAULT_MACHINE to detect 64-bitness.
- .
- This patch fixes the value of DEFAULT_MACHINE so it always contains just "mips"
- on 32-bit mips builds.
-Author: James Cowgill <jcowgill@debian.org>
+From: Debian MySQL Maintainers <pkg-mysql-maint@lists.alioth.debian.org>
+Date: Thu, 10 Aug 2017 20:40:29 +0200
+Subject: mips-machine
+
 ---
-This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
---- mariadb-10.1.orig/cmake/package_name.cmake
-+++ mariadb-10.1/cmake/package_name.cmake
+ cmake/package_name.cmake | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/cmake/package_name.cmake
++++ b/cmake/package_name.cmake
 @@ -34,6 +34,10 @@ IF(NOT VERSION)
        SET(DEFAULT_MACHINE "mips")
      ENDIF()