Improved exception message handling

moved pdf files into respective folders

Merge after pulling PR

Added comment to clarify differences in Octave and Python versions

Merge pull request #5 from teaegg/master

Assignments[PDF] added

corrected honor code

Merge branch 'master' of https://github.com/mstampfer/Coursera-Stanford-ML-Python

converted tabs to spaces for pep8 compliance

converted tabs to spaces for pep8 comlpliance

Merge branch 'sgang007-master'

Merge branch 'master' of https://github.com/sgang007/Coursera-Stanford-ML-Python into sgang007-master

improved if-else-elif example

improved break statment example

fixed while loop