minor things
-rw-r--r-- 26 .gitignore
-rw-r--r-- 311 .gitmodules
drwxr-xr-x - blocks
drwxr-xr-x - doc
drwxr-xr-x - maze
drwxr-xr-x - physic
drwxr-xr-x - pysge
drwxr-xr-x - spikes
drwxr-xr-x - tools