* add new UCI option "enable_extra_tuning"
* update template
* add config examples for options
* fix some access warnings on samba /var dirs

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

* update to 4.9.15
* fixes CVE-2019-10218, CVE-2019-14833, CVE-2019-14847
* update smb.conf.template (aio, sendfile)

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

* enable avahi by default, so Linux/Mac Clients can see samba shares
* enable timemachine config support
* fix invalid --builtin-libraries
* default to 'mdns name = mdns' in template

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

* update to 4.8.5
* enable aesni support for x86_64
* add 'unbundle libbsd' patch
* update smb.conf.template (disable spoolss)

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>