Updated testimonials

Metas -> hidden spans for schema.org
Removed history nav bar option to prevent it being too large and
compressing incorrectly on smaller resolutions
Updated fun facts
Removed last row of portfolio
Added real quotes for testimonials, these also loop every 5 seconds
instead of every 3, and have the correct pictures and LinkedIn links
g+.svg->google_plus.svg for IIS compatibility
Background colour to logos changed back to be consistent