Updated header link from to twitter
Update links to css, js and images
Added Receipts by Wave section

Need to improve screenshot quality
Need to complete description secion
Need to add Payroll by Wave
Added JS to hide/show past work
Added JS to align flexslider nav dots correctly in each article
Updated styling of dots
Updated styling of previous and next arrows
Added article for Payroll by Wave

*  Need to add screenshots and descriptions for Payroll by Wave section
*  Need to add descriptions for Receipts by Wave section