this is embarrassing: rename again to mappy

setup.py

@@ -9,9 +9,9 @@ cmdclass = {}
 try:
 	from Cython.Build import build_ext
 except ImportError: # without Cython
-	module_src = 'python/mmappy.c'
+	module_src = 'python/mappy.c'
 else: # with Cython
-	module_src = 'python/mmappy.pyx'
+	module_src = 'python/mappy.pyx'
 	cmdclass['build_ext'] = build_ext
 
 import sys
@@ -22,7 +22,7 @@ def readme():
         return f.read()
 
 setup(
-	name = 'mmappy',
+	name = 'mappy',
 	version = '2.2rc2',
 	url = 'https://github.com/lh3/minimap2',
 	description = 'Minimap2 python binding',
@@ -31,13 +31,13 @@ setup(
 	author_email = 'lh3@me.com',
 	license = 'MIT',
 	keywords = ['bioinformatics', 'sequence-alignment'],
-    ext_modules = [Extension('mmappy',
+    ext_modules = [Extension('mappy',
 		sources = [module_src, 'align.c', 'bseq.c', 'chain.c', 'format.c', 'hit.c', 'index.c',
 				   'ksw2_extd2_sse.c', 'ksw2_exts2_sse.c', 'ksw2_extz2_sse.c', 'ksw2_ll_sse.c',
 				   'kalloc.c', 'kthread.c', 'map.c', 'misc.c', 'sdust.c', 'sketch.c'],
 		depends = ['minimap.h', 'bseq.h', 'kalloc.h', 'kdq.h', 'khash.h', 'kseq.h', 'ksort.h',
 				   'ksw2.h', 'kthread.h', 'kvec.h', 'mmpriv.h', 'sdust.h',
-				   'python/cmmappy.h', 'python/cmmappy.pxd'],
+				   'python/cmappy.h', 'python/cmappy.pxd'],
 		extra_compile_args = ['-msse4'], # WARNING: ancient x86_64 CPUs don't have SSE4
 		include_dirs = ['.'],
 		libraries = ['z', 'm', 'pthread'])],