vorbis-tools: add pkg-config dep

Fixes #27379.
libagg: needs newer autotools

Fixes #27525.
poppler: update revision to propagate fix for splash backend

See 8a888cf1cf2fc1486b94ce3b3aa392b721d2ab83.

Fixes #26959.
libtar 1.2.20

Update libtar to 1.2.20, add build dependencies on autotools.
Point to new repository where development has been taking place.
libtar: add 1.2.20 bottle.

Closes #27538.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
influxdb 0.5.0-rc.6

Closes #27742.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
proxytunnel: use patch DSL
ptex: use patch DSL
pxz: use patch DSL
pyexiv2: use patch DSL
pyqt: use patch DSL
pyqwt: use patch DSL
pyside: use patch DSL
python3: use patch DSL
ragel: use patch DSL
readline: use patch DSL
renameutils: use patch DSL
rlog: use patch DSL
rp: use patch DSL
rrdtool: use patch DSL