pfSense

Report quantity of files being installed by minimal and diff options.

Also consolidate some unset commands.

(cherry picked from commit 32912ae833a016784cbb4813c45960cefc2d896b)

Support minimal and diff options combo rather than diff superseding minimal (sync both updated and diff files).

Break verbose option in two for showing files and/or constructed command. (--show_files, --show_command)
Don't save new commit ID if dry run. (--dry-run)...

Merge pull request #3169 from valneacsu/fix_wifi_channel_change

Merge pull request #3171 from phroggster/patch-2

Merge pull request #3177 from brunostein/fix_authmode_translated

Merge pull request #3179 from valneacsu/fix_wifi_settings_overwrite

Improve gwlb.inc notification mechanisms

1) Unlink earlier to reduce the chances of any concurrency issues;
2) Translate and improve output of available notification;
3) While I'm here, fix whitespace and improve PHP syntax.

Adjust parsing of OpenVPN ciphers to new output format. Fixes #6849

Create pkg.conf with ABI settings

Latest nginx requires /var/log/nginx/ to exist, so for users with /var in RAM it needs created.