Merge pull request #175 from sigmavirus24/master

Add two more examples to the structure section
Adding nested unpacking
Adding a bit about returning values
Merge pull request #176 from guibog/master

A bit on returning values and nested unpacking
remove deprecated flag
Merge pull request #177 from epequeno/virtualenv

remove deprecated flag
module naming
minor editing
add stub
Fix awkward wording in "Comments" section
Fix spelling in documentation article
edit stub
Fix spelling in learning.rst
fix spelling in env.rst
Fix spelling in styleguide.rst
Fix spelling in install/osx.rst
Fix spelling in structure.rst
Fix spelling in style.rst
Fix spelling in writing/tests.rst
add notes about vim usage with syntastic