initial work to prevent calls to date functions. 

In this case, the code must calls functions from
clock like ``clock.now()``
fix tests and return True for valid code
skip validation tests since on python 2.6 

AST module is incompatible
remove trailing spaces!
initial work to prevent calls to date functions. 

In this case, the code must calls functions from
clock like ``clock.now()``
fix tests and return True for valid code
skip validation tests since on python 2.6 

AST module is incompatible
remove trailing spaces!
Merge branch 'feature/prevent_baptism_problem' of github.com:felipecruz/coopy into feature/prevent_baptism_problem
fix line width
remove coopy.log and htmlcov/ dir on make clean
add localtime import
Merge branch 'master' into feature/prevent_baptism_problem
remove useless py3k check
improve clock code and check RestoreClock calls

methods return with instances popped from results 
list
Update Clocks Tests
Add verification Step to check if system methods

makes calls directly to datetime{now,utcnow}
or date.today. If so, raise PrevalentError
add missing coopy.error module
add py33 to travis.yml
add system validation test