Change portfolio icon class

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

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

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

Signed-off-by: Thomas Sturge <tomsturge@gmail.com>
Update portfolio presentation for homepage and portfolio page

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