Revert previous here. Debug mode is "raw" error display
mode and non-debug forwards to crash reporter.
Crash reporter itself could be broken, but mostly because
the system / include chain is broken. Until PHP offers
a reliable way to intercept parse error 500 we will have
to live with this unless it causes other side effects.
opnsense-update can read the upgrade hint itself. We may have
to stash an ABI in there to reach to a different location without
the need to publish a symbolic link.
Move the firmware message to a data location for cleanliness.
o move templates to src/opnsense/data/proxy, avoid lint issues
o initial version of install script (overlay and embed css)
o change squid.conf output, when error_page is provided use error_directory /usr/local/etc/squid/errors/local directory (install location)
o flush template data to error_directory.in (json) which is used as override
overlay logic needs some work to be able to use something similar on download. install hook should be called before squid startup to ensure proper error_pages.
