QA on all links and schedule flow

This is mostly a QA review to ensure that all the links point to the right things, but it does make the following changes in the schedule, also:
* Cut 30 minutes from first Python session - we can break in the middle if we need to
* Adds @kliph to the schedule where he should be
* renames some sections according to best practices
* puts the git branching section back into the git local flow ( @aronnem )