Update timetable and basic info in README.md

Timetable as discussed on skype. Links for sessions that we have split up will need updating.
Information on getting here.
Update the Welcome powerpoint

Place, people and date. Add reference to
code of conduct. Remove some of the animated
text. Create tinyurl pointing at the right
place:

    http://tinyurl.com/swcbristol

and add notes (to avoid having me forget
names).
Tidy up the README file and links.
Merge pull request #184 from andreww/2013-09-bristol

Update basic bootcamp info