apache: bump to 2.4.41 & sync with master

This is a squash of the following cherry-picked commits:

14f4f0bef0
4e6bdd8a49
c8aba5113b
2d188fd37f
31e0d618e5
39e68309e8
a1472254db
d6476f30bb
258967b0d2
e94a08298e
6bd63d24f0
66bb68a7b6
d44ad09fcd

Short summary:

- version is bumped to 2.4.41
- httpd is renamed to apache2 to avoid overwriting of other servers (for
  instance busybox's httpd)
- the name apache2 is now also used for directories, for instance
  /etc/apache2 instead of /etc/apache
- a simple init script it added (/etc/init.d/apache2)
- a user "apache" is added upon package installation and used by default
- adds the Apache modules (in the main package as well as in additional
  packages)
- Makefile and patches are updated and cleaned
- adds myself as maintainer
- improves the cross-compile setup (via configure variables, patches &
  sed scripts)
- apxs is fixed up so that external modules can be added easily

For more details please check the individual commits provided above.

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

net/apache/patches/005-httpd_conf.patch

@@ -1,63 +1,13 @@
-Index: httpd-2.4.25/docs/conf/httpd.conf.in
-===================================================================
---- httpd-2.4.25.orig/docs/conf/httpd.conf.in
-+++ httpd-2.4.25/docs/conf/httpd.conf.in
-@@ -63,7 +63,6 @@ Listen @@Port@@
- # Example:
- # LoadModule foo_module modules/mod_foo.so
- #
--@@LoadModule@@
- 
- <IfModule unixd_module>
- #
-@@ -74,8 +73,8 @@ Listen @@Port@@
+--- a/docs/conf/httpd.conf.in
++++ b/docs/conf/httpd.conf.in
+@@ -74,8 +74,8 @@ Listen @@Port@@
  # It is usually good practice to create a dedicated user and group for
  # running httpd, as with most system services.
  #
 -User daemon
 -Group daemon
-+User nobody
-+Group nogroup
++User apache
++Group apache
  
  </IfModule>
  
-@@ -188,7 +187,7 @@ ErrorLog "@rel_logfiledir@/error_log"
- # Possible values include: debug, info, notice, warn, error, crit,
- # alert, emerg.
- #
--LogLevel warn
-+LogLevel debug
- 
- <IfModule log_config_module>
-     #
-@@ -330,7 +329,7 @@ LogLevel warn
- # contents of the file itself to determine its type.  The MIMEMagicFile
- # directive tells the module where the hint definitions are located.
- #
--#MIMEMagicFile @rel_sysconfdir@/magic
-+MIMEMagicFile @rel_sysconfdir@/magic
- 
- #
- # Customizable error responses come in three flavors:
-@@ -360,7 +359,7 @@ LogLevel warn
- # Defaults: EnableMMAP On, EnableSendfile Off
- #
- #EnableMMAP off
--#EnableSendfile on
-+EnableSendfile off
- 
- # Supplemental configuration
- #
-@@ -411,8 +410,8 @@ Include @rel_sysconfdir@/extra/proxy-htm
- #       starting without SSL on platforms with no /dev/random equivalent
- #       but a statically compiled-in mod_ssl.
- #
--<IfModule ssl_module>
--SSLRandomSeed startup builtin
--SSLRandomSeed connect builtin
--</IfModule>
-+#<IfModule ssl_module>
-+#SSLRandomSeed startup builtin
-+#SSLRandomSeed connect builtin
-+#</IfModule>
-