Encapsulate HTML title functions in a class
Fix class name
Don't log the rendering of some subtemplates
Get the page's template from the params

Also, that is always set, so we can remove an extra check
Remove unused property 'template'

The name of the template to render is now taken from the config
instead, and the apps don't have the power to change it on runtime.

Also, only load the template_log.php file if TemplateLog is going
to be used
Don't use logging that has not been initialized

If aftertime_init() fails, we could have ended without logging
capabilities. Don't try to use them, just show up the error page
Split the Validate::check_multi method

Some of the parts of the (prev. called) check_multi method, can
be useful if declared public functions. Do split it and polish the
parts a bit
Add some notes on user passwords

The two _COOKIE variables holding the username and password are
unsafe, but they are *already* tested against the DB.

Maybe some extra checks could be done, but they'll need to wait until
user loging is separated into a different (and probably optional) class.
Comment the HTTP auth code (broken)

Also, add some notes about password upgrades
Correctly add callback validation errors

Don't add an array into the array but the merge of the sources

Also, fix a missing variable key in the 'required' checks
Add TODO comment for apache 2.4
Add some more general guidelines
Create the content folder on build time
Remove get_content_folder() helper function

The content folder shouldn't be created on run time, but during the
site deployment. So, remove the create part from the function.

Without the create part, the function becomes a wrapper to access
the (Config)['content'] key, what can be easily done in the
application itself
Remove unused require

The config is never used in this file. Remove the extra require
Invoke site's own Makefile on 'all' target

This will allow sites to build their own components in the
BUILDPATH folder. Note that there's still no support for the
'build' or 'package' targets
Check that Makefile exists before calling it
Allow for pages without page method

Still, log a WARNING line
Change the caller back just the app name

Do it when we have left the page's method