Merge pull request #5 from agarny/EMBC-2013-tutorial

Fixed a couple of warnings and updated the OpenCOR documentation following the release of the 2013-06-22 snapshot of OpenCOR.
working on the PMR documentation: changing from staging instance to teaching instance and the new http://teaching.physiomeproject.org URL; documenting workspace creation under the new system; moving the warning regarding use of the teaching instance to a separate file so it can be included in many places; started documenting the migration of workspaces from the teaching instance to the main PMR.
some more tidying up, changing references to the staging server to use the new teaching.physiomeproject.org URL, finishing the documentation on the migration of workspaces and exposures from one PMR instance to another, started work on the embedded workspaces section (will wait for some real-world examples in the EMBC tutorial to develop it further), removed user folders from the glossary as they no longer exist.
couple more references to the glossary terms
moving the PMR glossary out of PMR into the main docs, as there should only ever be a single glossary for the whole doc; starting work on the first scenario for the actual tutorial part
adding the images folder for the first tutorial scenario
adding more details and images for the OpenCOR scenario 1 steps.
adding link to OpenCOR downloads on the tutorial page under cellml.org
Adding the TortoiseHG instructions and images for the OpenCOR part of Scenario 1; adding information about sharing workspaces to the working with workspaces page and linking to it from the end of the OpenCOR part of Scenario 1.
Restructuring the scenario 1 tutorial to split it out into separate docs
minor correction to the workspace permission description following review from Tommy, all good and correct now
Filling out the 'Uploading files to your workspace' section to make it reasonably complete, using part of the OpenCOR section of the EMBC tutorial to demonstrate the process.
adding in a link to the CellML exposure docs in case the participants want to have a play with exposures.
a bit more rearranging and clearing up of the tutorial index page - no need to duplicate the full abstract there. Starting work on scenario 2
adding initial empty files for scenario 2 text
forgot the title in the OpenCOR page so it gets left out of the TOC
finishing off initial draft of the OpenCOR part of scenario 2 for the tutorial; a few other little tidy ups.
starting work on scenario 3 for the EMBC tutorial, developing the CellML/OpenCOR aspect; filling in a few more tips for the best practices
Some minor changes to the tutorial index page and scenario 1.