mysql: updated to 4.1.18 (security fixes)

diff --git a/packages/mysql/mysql-4.1.16/.mtn2git_empty b/packages/mysql/files/.mtn2git_empty
similarity index 100%
rename from packages/mysql/mysql-4.1.16/.mtn2git_empty
rename to packages/mysql/files/.mtn2git_empty

diff --git a/packages/mysql/mysql-4.1.16/autofoo.patch b/packages/mysql/files/autofoo.patch
similarity index 100%
rename from packages/mysql/mysql-4.1.16/autofoo.patch
rename to packages/mysql/files/autofoo.patch

diff --git a/packages/mysql/mysql-4.1.16/gen_lex_hash.patch b/packages/mysql/files/gen_lex_hash.patch
similarity index 100%
rename from packages/mysql/mysql-4.1.16/gen_lex_hash.patch
rename to packages/mysql/files/gen_lex_hash.patch

diff --git a/packages/mysql/mysql-native_4.1.16.bb b/packages/mysql/mysql-native_4.1.18.bb
similarity index 100%
rename from packages/mysql/mysql-native_4.1.16.bb
rename to packages/mysql/mysql-native_4.1.18.bb

diff --git a/packages/mysql/mysql_4.1.16.bb b/packages/mysql/mysql_4.1.18.bb
similarity index 100%
rename from packages/mysql/mysql_4.1.16.bb
rename to packages/mysql/mysql_4.1.18.bb