update gitignore

this was excluding all .asm files when it should have just been .asm
files in the top level directory and .asm.s files lower down. also be
more restrictive on some other items, and run the whole thing through
sort to keep it organized

Change-Id: Ia48525033226b13098a491ce89465d0377b990c2

.gitignore

@@ -1,19 +1,16 @@
-*~
 *.a
+*.asm.s
 *.d
 *.o
-*-old
-*-new
-*.mk
-*.asm
-TAGS
-.bins
-.libs
-.deps
-/.cflags-new
-/.cflags-old
+*~
+/*-*.mk
+/*.asm
+/*.doxy
+/.bins
+/.deps
 /.docs
 /.install-*
+/.libs
 /Makefile
 /config.err
 /config.mk
@@ -23,14 +20,11 @@ TAGS
 /decode_with_drops
 /decode_with_drops.c
 /decode_with_drops.dox
-/docs-generic-gnu.mk
 /docs/
 /doxyfile
 /error_resilient
 /error_resilient.c
 /error_resilient.dox
-/examples-generic-gnu.mk
-/examples.doxy
 /force_keyframe
 /force_keyframe.c
 /force_keyframe.dox
@@ -38,8 +32,7 @@ TAGS
 /ivfdec.dox
 /ivfenc
 /ivfenc.dox
-/libs-generic-gnu.mk
-/libs.doxy
+/obj_int_extract
 /postproc
 /postproc.c
 /postproc.dox
@@ -66,3 +59,4 @@ TAGS
 /vpx_config.c
 /vpx_config.h
 /vpx_version.h
+TAGS