Rewrite buildsystem to use Makefile.gappkg

This should remove the problems on OpenBSD, and speed up build times.

.gitignore

@@ -1,94 +1,37 @@
-*.DS_Store
-*.Plo
-*.aux
-*.bbl
-*.blg
-*.brf
-*.d
-*.g6
-*.gz
-*.html
-*.idx
-*.ilg
-*.ind
-*.la
-*.la
-*.lab
-*.lab
-*.lo
-*.log
-*.orig
-*.out
-*.pdf
-*.pnr
-*.pyc
-*.pyc
-*.semigroups
-*.six
-*.swo
-*.swp
-*.synctex.gz
-*.tex
-*.toc
-*.top
-*.tui
-*.txt
-.dirstamp
-.libs
-/libsemigroups/
-Makefile
-/Makefile.in
-Transitions*
-_*.xml
-_AutoDocMainFile.xml
-_Chunks.xml
-aclocal.m4
-autom4te*
-autom4te.*
-autom4te.cache
-bibliography.xml.bib
-bin
-cnf
-config.log
-config.status
+/aclocal.m4
+/autom4te.cache/
+/bin/
+/config.guess
+/config.status
+/config.sub
 /configure
-doc/*.css
-doc/*.js
-doc/main.aux
-doc/main.bbl
-doc/main.blg
-doc/main.brf
-doc/main.idx
-doc/main.ilg
-doc/main.ind
-doc/main.log
-doc/main.out
-doc/main.pnr
-doc/main.tex
-doc/main.toc
-doc/manual.pdf
-doc/manual.six
-gapbind14/demo/gen/
-gh-pages
-lcov*
-libtool
-libtool.m4
-ltmain.sh
-ltoptions.m4
-ltsugar.m4
-ltversion.m4
-lt~obsolete.m4
-main.xml
-new_bibliography.xml.bib
-pkgconfig.h.in~
-semigroups-config.hpp
-src/.deps
-src/.dirstamp
-src/.libs
-src/_pkgconfig.h
-src/stamp-h1
-tags
-title.xml
-tmp
-tst/workspaces/test-output.w
-wiki/
+/doc/_*.xml
+/doc/*.aux
+/doc/*.bbl
+/doc/*.blg
+/doc/*.brf
+/doc/*.css
+/doc/*.html
+/doc/*.idx
+/doc/*.ilg
+/doc/*.ind
+/doc/*.js
+/doc/*.log
+/doc/*.out
+/doc/*.pdf
+/doc/*.pnr
+/doc/*.tex
+/doc/*.toc
+/doc/*.txt
+/doc/*.xml.bib
+/doc/main.xml
+/doc/manual.lab
+/doc/manual.six
+/doc/title.xml
+/gapbind14/demo/gen/
+/gen/
+/gh-pages/
+/libsemigroups/
+/Makefile
+/src/pkgconfig.h.in
+/src/semigroups-config.hpp