It looks like serial support was accidentally dropped due to missing
pieces on Config.in and Makefile.  Add back serial support by fixing
that.

Signed-off-by: Daniel Dickinson <lede@cshore.thecshore.com>

With a LuCI app (of which I have one written) ucification makes
sense (and is in fact needed), so ucify the initscripts.

Also, rather than making selection of things to include an image
a matter of selecting compile-time config options, make optional
things into seperate packages that are built in default builds,
and leave selection of what to include or not up to the user
(e.g. using ImageBuilder, or adding packages via opkg).

Signed-off-by: Daniel Dickinson <lede@cshore.thecshore.com>

Headers are required by collectd as mentioned in #1801. This is the nut portion based on dwmw2@d636841cd1d1dfab04cb509520c082738ddfb2ea
Happy to merge with 15.05 as per #1803.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
[martin.p.rowe@gmail.com: condensed InstallDev lines]

Added package nut-web-cgi based on demorfi@7e340f47944ff4a9c49d3b1dc6c1d9d965cd344c. Closes #1614.
Pending signoff by @demorfi
[martin.p.rowe@gmail.com: simplified implementation, no changes to Config.in]

Added package nut-avahi-service similar to other implementations in #618
Bugfix to remove redundant NUT_DRIVER_SERIAL config
Bugfix to make UPSLOG config actually install (requires PKG_RELEASE bump)
Some code tidy-ups
Signed-off-by: Martin Rowe <martin.p.rowe@gmail.com>

An older version of nut is in oldpackages. This commit is based on that
package and bumps the version to the latest release along with unifying
the server and client packages. More build options are provided for any
custom configuration but the defaults provide a working client and
server install which only needs a UPS driver. Drivers still build as
individual packages to minimise bloat. SSL support has also been added.

Signed-off-by: Martin Rowe <cyanidium@users.noreply.github.com>