Merge pull request #6 from jtatum/master

Changing tuple tests to be a little more contemplative
Slight tweak: I think having one old style tuple with comma test is good for variety
To use 'sorted' it makes more sense to have an unordered set instead of a ordered one
Merge pull request #8 from andersondias/patch-1

Using an unordered set to show real usage of sorted
A bit better example for pop, proving by observation of the test result that the argument to pop is relative to the left of the list, not the end.
Merge pull request #9 from rjo1970/106e4476f0f83e58c3702f92ae53bfba537ebffa

pop confused me- this makes it clearer
Reformatted single-line functions to multi-line function to improve readability.
Reformatted single line functions for improved readability.
Improved formatting.
Merge pull request #10 from namsral/master

Improved readability
Corrected example of package the koans hierarchy.
Corrected example of the koans package hierarchy.
Merge pull request #11 from namsral/master

Correction of example docs
Fixed bad regex assert in Python 3 flavor of AboutGenerators
Merged generators fix from engored and pep8 fixes from sietsebb via bitbucket mirror
Merge from bitbucket mirror: 'gpiancastelli - Fix for issue #21 and some other tweaks'
Merge from bitbucket mirror: 'gpiancastelli - Fix for issue #21 and some other tweaks'
Demonstrate empty dictionary literals
Merge pull request #13 from mgpb/empty_dict_literals

Demonstrate empty dictionary literals
Rename .txt to .rst for better rendering