CLIMATE-604 - Fix draw_subregions
CLIMATE-604 - Fix draw_subregions

- Access to various Bounds objects have been updated to use the proper
  variable names. Additionally, attempted access to Bounds attributes
  that don't exist (e.g., name) have been changed.
- Minor docstring update for clarity.

MBoustani/climate,agoodm/climate,riverma/climate,apache/climate,pwcberry/climate,pwcberry/climate,riverma/climate,pwcberry/climate,jarifibrahim/climate,jarifibrahim/climate,pwcberry/climate,apache/climate,jarifibrahim/climate,huikyole/climate,huikyole/climate,riverma/climate,MBoustani/climate,apache/climate,Omkar20895/climate,MBoustani/climate,MJJoyce/climate,pwcberry/climate,huikyole/climate,lewismc/climate,MJJoyce/climate,jarifibrahim/climate,MBoustani/climate,Omkar20895/climate,MJJoyce/climate,lewismc/climate,apache/climate,agoodm/climate,lewismc/climate,agoodm/climate,huikyole/climate,huikyole/climate,jarifibrahim/climate,agoodm/climate,MBoustani/climate,lewismc/climate,lewismc/climate,riverma/climate,Omkar20895/climate,agoodm/climate,MJJoyce/climate,Omkar20895/climate,apache/climate,riverma/climate,MJJoyce/climate,Omkar20895/climate