Merge pull request #8 from ThyArmageddon/master

Multiple fixes
Corrects list as stack's example typo
Merge pull request #9 from JCaselles/master

Corrected typo in Lists as stack example
changed numbers with marks
Corrects students.py example
Link to upstream documentation for default values in functions.
Merge pull request #11 from kumarpraveen/typos

changed numbers with marks
Merge pull request #10 from JCaselles/master

Correction in students.py
Initial commit for Project Structure chapter.
Merge branch 'master' of github.com:kushaldas/pym
Adds missing modules chapter, this will require adding __all__ details later on.
docbook converion typo fixes.
defined string s value
Updated to 0.3.alpha1
Updates variable name to fobj from just f.
Merge pull request #13 from kumarpraveen/typos

defined string s value
Rectified some typos.
Merge pull request #14 from iamsudip/new

Rectified some typos.
Adds initial __add__ description.

It also moves the text inside the chapter.
alpha1