fix generated filelistapply

from ShapeNet#7:
The lines in shape_list are like 
--
02691156 10155655850468db78d106ce0a280f87
02691156 1021a0914a7207aff927ed529ad90a11
..
--
, so modelId should be x.rstrip().split(' ')[1], not [0].

Author: devernay

src/experiments/compute_distance_matrices/gen_filelist_fixedview.py

@@ -4,7 +4,7 @@
 from global_variables import *
 
 img_root_dir = g_fixedview_image_folder
-modelIds = [x.rstrip().split(' ')[0] for x in open(g_shape_list_file,'r')]
+modelIds = [x.rstrip().split(' ')[1] for x in open(g_shape_list_file,'r')]
 elevatio_degs = g_fixedview_elevation_degs
 azimuth_degs = g_fixedview_azimuth_degs