cleanup: Remove ports depending on expired lang/gcc6-aux

Keep ports-mgmt/synth and dependencies (including lang/gcc6-aux itself)
for now as synth is the only Ada port still maintained and might be
somewhat high-profile.

Removed ports:
archivers/zip-ada
cad/ghdl
databases/adabase
databases/apq
databases/apq-mysql
databases/apq-odbc
databases/apq-pgsql
devel/ada-util

Remove # $FreeBSD$ from Makefiles.

Bump PORTREVISIONs of all users of math/mpc that we just updated to
version 1.1.0 (via revision 464079).

Return ports maintained by John Marino to the pool, he is no longer interested.

Submitted by:	Mark Millard via private e-mail

Return the ports mistakenly reset to ports@ in r433856 to John Marino.

The mistake was completely on my part, I somehow connected the dots the
wrong way in my head.

The only exceptions (for now) are archivers/zstd and ports-mgmt/synth
which were already picked up by new volunteers in the mean time.

Return ports maintained by John Marino to the pool, see r433827 for details

- Remove bogus (in presence of USE_GITHUB) USES=tar*
- While here, minor cosmetic and license fixes

Approved by:	portmgr blanket

${RM} already has -f.

PR:		213570
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

textproc/templates-parser: Upgrade version 11.10.0.0 => 17.0.0

There was a numbering scheme change where 11.10 jumped to 17.0, and there
is an associated soname change.  The ports that depend on the templates
parser have been bumped accordingly.

devel/gprbuild: Upgrade version 20150506 => 20160609

GPRBuild build is now hosted on github, so we can move away from the
yearly releases and update more frequently.  Unfortunately the docs
makefile is currently broken so docs are disabled currently.  When
they come back, only txt and html docs will be supported.

This new version detected a missing reference in the template-parser
port so that port has been fixed and the downstream ports bumped
accordingly.

It also discovered an interface specification issue in a designer
example of qtada.  I spent a few minutes trying to fix/workaround it,
but ultimately marked it broken.  I will also deprecate the port because
it no development has occurred since the port was created, and it's not
even based on a real release.  We'll see if anybody cares (3 month
deprecation).

textproc/xmlada: Upgrade version 4.6.0.0 => 17.0.0 (scheme change)

The numbering scheme changed to presumably match years (e.g. 17 => 2017)
Bump everything with a build dependency as there is a matching soname
change.  Everything still builds on a DF exp-run.

Change Ada Framework foundation from gcc5-aux to gcc6-aux

GCC 6.1 was released this week.  The Ada Framework in FreeBSD ports has
been based on GCC 5.3 GNAT although GCC 6.x has been supported for awhile
via the ADA_DEFAULT option in make.conf.

Now that GCC 6 has been officially released, switch to it by default.
People can maintain the old foundation by putting "ADA_DEFAULT=5" in
/etc/make.conf.

Libraries built by one GNAT are unusable by another, so almost every Ada
port has been bumped as a result.  Noticable exceptions are dns/ironsides
which fails to build on gcc6 (thus USES=ada:5 is set) and cad/ghdl which
needs additional testing as it may require gcc5 on FreeBSD (DragonFly
uses the LLVM backend only).

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

- Switch to options helpers
- Add some NO_ARCHes
- Fix and unsilence some installation commands
- Other minor fixes

Approved by:	portmgr blanket

bump templates-parser, cluster is not rebuilding it after compiler change

textproc/xmlada: Upgrade version 4.5.0.0 => 4.6.0.0, overhaul make system

Due to the unavailability of a public repository, this version uses
Adacores 2015 distribution of xmlada.  It's probably a minor update
from the previous one.

The major change, however, is the creation of a custom makefile to build
and install xmlada.  Why?  because gnatmake will lose the ability to
build project files in the near future, so xmlada makefiles were changed
to use gprbuild to build and itself it.  One problem: gprbuild needs
xmlada as a build dependency.  (and it also needs gprbuild to build
itself!!)  I could have chosen to keep using gnatmake, but I decided to
bite the bullet, fix it correctly now and not have to get stuck by it
by future versions of gnat that remove project management from gnatmake.

textproc/templates_parser: upgrade version 1.10.0.0 => 1.11.0.0

This version is very close to the GPL 2015 version recently released
by Adacore.

Remove @dirrm from five textproc ports (plus general cleanup)

textproc/templates_parser: Define Naming in gpr file

Two source files have non-standard names as they were build options.
The gpr file needs to pass this information to gprbuild users.

Add new Ada port: textproc/templates_parser

This was part of the Ada Web Server, but it is maintained separated and
even needs to be recursively cloned into AWS git repository.  Now the
AWS template engine is a separate library that AWS will use in the
upcoming update.  The package description is below.

     ================================================================

This is the template engine for the Ada Web Server.  It is modular and
therefore can be split out of AWS and used on its own.

As it was designed for generating web pages, it's function is to parse
a page template and replace tokens with specified values.  This template
engine is amazingly fast due to its concurrent cached compiled templates
support.

WWW: http://docs.adacore.com/aws-docs/templates_parser