Modern Robotics: Mechanics, Planning, and Control Code Library --- The primary purpose of the provided software is to be easy to read and educational, reinforcing the concepts in the book. The code is optimized neither for efficiency nor robustness.
Cleaned up tab/space indentation. Previously some of the samples would not
work if copied/pasted into a Python interpreter because of mixed tabs/spaces
Cleared all trailing whitespace
Missing quotation marks in some sample code caused mistakes with printing
messages
Added all import statements to some of the examples that already had some
import statements
(addresses #8)