Update to current portfolio

Signed-off-by: Thomas Sturge <tomsturge@googlemail.com>
Merge branch 'master' of https://github.com/tomsturge/tomsturge.github.com

# By Thomas Sturge (44) and tomsturge (13)
* 'master' of https://github.com/tomsturge/tomsturge.github.com: (57 commits)
  Fixed text-align
  Update to text-align and fix typo
  Update to About bio (Typos and Grammar)
  Remove pubdate from time attribute
  Remove update from time element
  Post date format fix
  More alt and title fixes
  Corrected mailto and callto links
  Change nav link attributes from alt to title
  Updated alt and title attributes for links and images
  Added 4th Coast portfolio piece
  Update HTML comments and homepage margins
  Fix template syntax
  Add Twitter card meta data
  Add Twitter Card meta tags
  Add 'Work' single view pages
  SASS and layout code for the various 'Work' pages
  Set up for Work restructuring
  Clean up Mixture's mess
  Remove slider JS/layout, add initial work layout recode, add some work items in Markdown.
  ...

Signed-off-by: Thomas Sturge <tomsturge@gmail.com>

Conflicts:
	_layouts/default.html
	assets/css/sass/_custom.scss
	assets/css/sass/_nav.scss
	assets/css/sass/_site.scss
	assets/css/sass/pages/_home.scss
	assets/css/sass/screen.scss
	assets/css/screen.css