*) mod_lua: Improve compatibility with Lua 5.1, 5.2 and 5.3.
PR58188, PR60831, PR61245. [Rainer Jung]
+
+ *) COMPATIBILITY: mod_lua: Remove the exported 'apr_table' global variable
+ when using Lua 5.2 or later. This was exported as a side effect from
+ luaL_register, which is no longer used as of Lua 5.2. [Rainer Jung]
*) mod_http2: disable and give warning when mpm_prefork is encountered. The server will
continue to work, but HTTP/2 will no longer be negotiated. [Stefan Eissing]