switching flag order for jekyll
1.  Modifying home page validator to make sure that the contact address *isn't* 'admin@software-carpentry.org'.
2.  Adding tests for validator's checking of helpers list.
Add CSS for printing

The CSS was add at our main CSS and remove from printing:

- Logo at header
- GitHub ribbon
- Footnote

Close #561.
Making instructions for checking bootcamp home pages more prominent
Shrink the font size for print version
Merge pull request #562 from r-gaia-cs/media-print

Add CSS for printing
Updating README with description of Windows installer
Merge pull request #572 from gvwilson/adding-note-about-windows-installer

Updating README with description of Windows installer
Corrected the order of the images in the Git Conflicts section.
Merge pull request #574 from ctjacobs/fix-order-of-git-conflicts-images

Fix image order in novice/git/03-conflict.md
Fix link
Fix links to glossary at book.html

Originally the glossary is available at
http://software-carpentry.org/v5/gloss.html but for
http://software-carpentry.org/v5/book.html it is already
available at the same page. So we could change the links
pointing to glossary to the book.

This change is necessary to to avoid problems when creating
the EPUB and PDF version of our lessons.
Update IPython Notebook template

- Improve to handle err class
- Improve pandoc support
Update Markdown from IPython Notebooks

Update Markdown files based on previous commit changes at template.

Built with

    $ python --version
    Python 2.7.7
    $ ipython --version
    2.1.0
Workaround for colspan and vertical headers
Change some anchors to enable EPUB post processor
Add epub entry to Makefile

- Makefile for EPUB
- Metadata for EPUB
- CSS for EPUB
- Post-processor for EPUB building stack

  When converting HTML to EPUB using pandoc we lose the
  anchors at glossary.  This PR add a post-processor to
  restore this anchors.

  This close #550.
Merge pull request #554 from gvwilson/checking-contact-email-address

Checking that contact email address has been re-set in index.html
Merge pull request #518 from drlabratory/jekyll-flags

switch order of jekyll flags in Makefile
Merge pull request #565 from gvwilson/making-check-more-prominent

Making instructions for checking bootcamp home pages more prominent