openssl: don't install manpages

This gets rid of ca. 1200 manpages in ssl/man/man[13].
libssh2: don't install manpages

This gets rid of ca. 160 manpages.

Also, drop nonexisting 'bin_PROGRAMS= sbin_PROGRAMS= html_DATA='.
sdl: don't install manpages

This gets rid of ca. 170 manpages.

Also, drop nonexisting 'bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS='.
sdl2: Drop non-existing stuff

There are no 'bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS=' in sdl2.
Merge pull request #471 from uwehermann/no_manpages

Don't install manpages and other cleanups
glib: remove outdated comment
glib: Clarify the glib-* tools building process
update-config-guess: fix typo
update-config-guess: Fix website

ugh...
qtservice, qtsystems: fix checksums (again)
Merge pull request #473 from GuilhermeBernal/master

qtservice, qtsystems: fix checksums (again)
libgomp: Fixes #474
Merge pull request #475 from GuilhermeBernal/patch-1

libgomp: Fixes #474
openal: fix BUILD_SHARED variable
update package vmime
Update qtsystems.mk

update checksum
Merge pull request #480 from ddqd/patch-1

Update qtsystems.mk
Makefile: Add MXE_DISABLE_{PROGRAMS,DOCS,CRUFT}.
tiff: don't install cruft

This gets rid of ca. 60 manpages and 60 HTML pages.

The 19 executables that were not built and installed before, continue
not being built/installed.
curl: don't install cruft

This gets rid of ca. 50 manpages and curl.exe.

We do keep installing curl-config, since that is used by other packages.