Log message:
Upgrade USE_LANGUAGES=ada to use lang/gcc5-aux instead of lang/gcc-aux

This large commit accomplishes the following:

1) Switch USE_LANGUAGES=ada to require lang/gcc5-aux (gcc 5.4) instead
   of lang/gcc-aux (gcc 4.9.2) on gcc.mk
2) Bump affected ports and fix paths as necessary
3) Upgrade devel/gprbuild to the latest release
   - No longer requires lang/gnat_util
   - gprslave requires gcc6-aux, so it was disabled for now
4) Fix lang/gnat_util but set PKG_SKIP_REASON
   - It has no further purpose in the pkgsrc tree
   - It has no practical purpose outside of the pkgsrc tree
   - Indicate intent to remove from tree in Jan. 2017
5) Set devel/GPS as failed with PKG_FAIL_REASON
   - This version of GPS is several years old and at the time they were
     strongly tied to compiler.
   - Latest release of GPS require gcc6-aux (not available) and several
     new and complex dependencies
   - maintainer (me) has no interest to continue supporting it
   - Leaving GPS in place until Jan 2017 to give another person chance to
     upgrade and take over support
   - Latest version in FreeBSD Ports Collection as a reference point

Log message:
Recursive PKGREVISION bump for gnutls shlib major bump.

Log message:
Use build option framework to not randomly vomit on the console.

Log message:
Bump PKGREVISION for security/openssl ABI bump.

Log message:
Add SHA512 digests for distfiles for www category

Problems found locating distfiles:
	Package haskell-cgi: missing distfile haskell-cgi-20001206.tar.gz
	Package nginx: missing distfile array-var-nginx-module-0.04.tar.gz
	Package nginx: missing distfile encrypted-session-nginx-module-0.04.tar.gz
	Package nginx: missing distfile headers-more-nginx-module-0.261.tar.gz
	Package nginx: missing distfile nginx_http_push_module-0.692.tar.gz
	Package nginx: missing distfile set-misc-nginx-module-0.29.tar.gz
	Package nginx-devel: missing distfile echo-nginx-module-0.58.tar.gz
	Package nginx-devel: missing distfile form-input-nginx-module-0.11.tar.gz
	Package nginx-devel: missing distfile lua-nginx-module-0.9.16.tar.gz
	Package nginx-devel: missing distfile nginx_http_push_module-0.692.tar.gz
	Package nginx-devel: missing distfile set-misc-nginx-module-0.29.tar.gz
	Package php-owncloud: missing distfile owncloud-8.2.0.tar.bz2

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.

Log message:
Bump PKGREVISION for nettle shlib major bump.

Log message:
Bump applications PKGREVISIONs for python users that might be using
python3, since the default changed from python33 to python34.

I probably bumped too many. I hope I got them all.

Log message:
www/aws: Link aws tools with runpath to libssl

The aws tools were linked to libssl without rpath.  If libssl is not
located in a standard library search path, the rtld will not be able
to find it (as seen on Joyent dev area).

This change links the libssl runpath to the tools.

Log message:
www/aws: Fix build for different zlib and libssl locations

The configuration for the location of libz and libssl both were wrong,
and they were corrected with their respective BUILDLINK_PREFIX.

In addition, regardless of where libssl is located, the standard location
(/usr/include) was searched instead of relative to the library.  This
required a patch to the GPR build in order to pass -I<loc> to the
compilation of C files.

The unnecessary removal of empty directories was removed as SunOS find
does not support the -empty switch.

Tested on Joyent dev area where both libz and libssl are not at /usr/lib.

Log message:
www/aws: Fix after gprbuild update

The new gprbuild configuration files must have a slight difference
because it can no longer work with the standard buildlink.  Passing
an additional directory in the pass will fix it though.