Merge pull request #54 from mikej888/2013-04-manchester

Updates to introduction, conclusion and testing
Merge pull request #59 from mikej888/2013-04-manchester

Fixed bug in test code
Initial commit to version-control
Some rewording and adding Bitbucket
Create 1_Local.md
Adding README to Python
Minor rewording and changes.

Added 'git commit -a'
Changed GitHub to Bitbucket and minor rewording
Typos fixed and changed to Bitbucket
Fixed typos
Some rewording and adding Bitbucket
Create 4_Conclusion.md
Create 5_HintsAndTips.md
adding weight_samples.py code - exercise for functions
Added more comments
Update README.md
Rewording
Update README.md
Changed to python prompt (from IPython)
Fixed typos