Changed lecture 2 notes

I have adjusted the lecture 2 notes to a more viewer friendly format
added lect08 notes
Merge remote-tracking branches 'Lutka/lecture-notes-08' and 'TheOneRichy/master'
mv lecture02.docx lect02.docx, for consistency
lecture 13-Oct-2014, via email
mv ML.pdf lect07.pdf
In .olt format rather than PDF, per email
mv ML.odt lect07.odt
Lecture at 11am Nov 4 2014. (I believe it's lecture 12 but I can't be certain)
mv Lecture\ 11am\ Nov\ 4\ 2014.docx lect12.docx
HMM Cheat Sheet
wikipedia entries
another wikipedia entry
urls
implementations
machine-learning-7-oct-14.odt (lect 6) per email
mv machine-learning-7-oct-14.odt lect06.odt
17th_NovMachine\ Learning.docx per email
mv 17th_NovMachine\ Learning.docx lect15.docx
pointers