As described in: http://dev.mysql.com/doc/refman/5.1/en/access-denied.html
"""
If you cannot figure out why you get Access denied, remove from the user  table
all entries that have Host values containing wildcards (entries that contain
'%' or '_'  characters). A very common error is to insert a new entry with
Host='%'  and User='some_user', thinking that this enables you to specify
localhost to connect from the same machine. The reason that this does not work
is that the default privileges include an entry with Host='localhost'  and
User=''. Because that entry has a Host value 'localhost' that is more specific
than '%', it is used in preference to the new entry when connecting from
localhost! The correct procedure is to insert a second entry with
Host='localhost'  and User='some_user', or to delete the entry with
Host='localhost'  and User=''. After deleting the entry, remember to issue a
FLUSH PRIVILEGES statement to reload the grant tables.
"""

If erp5_update is controlled through supervisord, then put it in etc/run/
(slapgrid adds all the content of this directory to supervisord), otherwise,
put it in bin directory.

our own fontconfig should be also included in LD_LIBRARY_PATH so that we can force using our own fonts.

This is required by testConflictResolution & testInvalidationBug.

The only functional change is the following:
- before: sys.path begins with [*/product/*/tests] followed by [*/tests]
- after: sys.path begins with [prj1/product/*/tests, prj1/tests,
                               prj2/product/*/tests, prj2/tests,
                               ...]
This should have no impact.

Also remove 2 configuration lines that only repeated the default values

because new bt5 may have been added in the meantime.

It was missing in 3a157be8

It is not used by default.

It mangles buildout:develop as described in https://github.com/fschulze/mr.developer/issues/57,
and buildout:develop is used in many project to checkout and develop various
eggs in "slapos" way.

On Debian-based distributions,  gcc FTBFS because of special  linker files and
architecture-dependent  headers being  available in  /usr/lib/<triplet> rather
than /usr/lib  and /usr/lib64. This avoids  settings respectively LIBRARY_PATH
and CPATH manually on such distributions.

http://kb.askmonty.org/en/mariadb-530-release-notes

zabbix_agentd is  a standalone  daemon which can  be ran  through supervisord,
whereas zabbix_agent is  supposed to be used with inetd,  thus use the former,
likewise zabbix-agent software instanciation profile.

Need to allow from www.owlfish.com, as WSGIUtils is available there.