Centralize the python build/install bits in the top Makefile. Build for python2 and python3 (if both present)

src/python/recoll/Makefile.in

@@ -1,12 +0,0 @@
-all:
-	echo libdir: $(libdir)
-	test '@srcdir@' = '.' || cp -rp @srcdir@/recoll .
-	libdir=$(libdir) python setup.py build
-install:
-	sudo python setup.py install
-clean:
-	rm -rf build 
-	rm -f recoll/__init__.pyc
-	rm -rf recoll/__pycache__
-distclean: clean
-	rm -f setup.py 

src/python/recoll/setup.py.in

@@ -72,6 +72,7 @@ setup (name = 'Recoll',
        author_email = 'jfd@recoll.org',
        url = 'http://www.recoll.org',
        license = 'GPL',
+       package_dir = {'' : os.path.join(top, 'python', 'recoll')},
        long_description = '''
 ''',
     packages = ['recoll'],