MFH: r427496 r428078 r428120

lang/php70: enabled DTRACE option by default where possible

Approved by: tz (maintainer)

lang/php70: DTRACE option is not valid on DragonFly

Note that following the OPTIONS_EXCLUDE+= line appears to redundant
and could be removed, and the OPTIONS_EXCLUDE_FreeBSD_9 line should
be "=" operator, not "+=", from what I can tell.

Approved by: DF support blanket

Update PHP 7 from 7.0.13 to 7.0.14

Changelog: http://www.php.net/ChangeLog-7.php#7.0.14

Approved by: mentors (implicit)

Approved by: ports-secteam (junovitch)