Declare version 1.6 with updated changelog

Merge commit '07c501d'

Adjust command prompt to accept all caps (see #26)

For #26, fix another exception I just introduced

Finish fix #26: set bottle description properly

For #26, fix actual crash, and add walkthrough

Remove dangling whitespace

Use obj.is_at(room) consistently

Store descriptions under int key, not float

Declare 1.5 and update changelog

Fix: 'Object' object has no attribute 'text' (#25)

Declare 1.5 and update changelog

Fix: 'Game' object has no attribute 't_walk' (#24)

Fix #7 with if __name__ == '__main__'

Fix #10 by making “args” a parameter to loop()