old make systems config files -> no longer needed
no idea where that "rm *.inc" rule came from, it was wrong for sure ...
"git mv" of all original *.sql files to t/*.test and added missing tests

... then put original *.test content back
this way future changes to .sql tests in "master" will raise conflicts
and won't go unnoticed
no need for a manual "make source tarball" script anymore,
this is functionality that comes out of the box with automake
missed these changes on previous "renamed .sql to .test files" commit ...
replaced make-binary-tarball.sh with "make binary-dist"
which uses "make install" internally to create a staging directory,
then constructs a platform specific binary tarball name out of
information already present in the generated Makefile (version,
build-platform triplet)
remove generated testfunc.inc after successful test run
and if builddir!=srcdir remove the files we've copied over
(needed to pass "make distcheck" as it checks that no generated
files are left behind after "make distclean")
remove testconf.inc only if tests passed, and also remove log dir then
typo fixes, and removed extra clean rule as this is now taken care of by
the test driver script itself
mark non-standard customer targets as .PHONY
use $MAKE and $AMTAR variables instead of direct make/tar invocation