Merge "update .gitignore"

.gitignore

@@ -19,18 +19,14 @@
 /config.log
 /config.mk
 /decode_to_md5
-/decode_to_md5.c
 /decode_to_md5.dox
 /decode_with_drops
-/decode_with_drops.c
 /decode_with_drops.dox
 /docs/
 /doxyfile
 /error_resilient
-/error_resilient.c
 /error_resilient.dox
 /force_keyframe
-/force_keyframe.c
 /force_keyframe.dox
 /ivfdec
 /ivfdec.dox
@@ -40,27 +36,21 @@
 /libvpx.ver
 /obj_int_extract
 /postproc
-/postproc.c
 /postproc.dox
 /samples.dox
 /simple_decoder
-/simple_decoder.c
 /simple_decoder.dox
 /simple_encoder
-/simple_encoder.c
 /simple_encoder.dox
 /test_libvpx
 /twopass_encoder
-/twopass_encoder.c
 /twopass_encoder.dox
 /vp8_api1_migration.dox
 /vp8_scalable_patterns
 /vp8_scalable_patterns.dox
 /vp8_set_maps
-/vp8_set_maps.c
 /vp8_set_maps.dox
 /vp8cx_set_ref
-/vp8cx_set_ref.c
 /vp8cx_set_ref.dox
 /vpx.pc
 /vpx_config.c