Updated d4d navbar logo
Removed extra sections from index page
Added 'about' template
Created 'titw' template
Removed scrollspy from body tag
Updated css to improve page formatting: centering, static footer
Added link to titw website
Added template for idhack
Added template for ttp
Removed navbar links about Partner Organizations
Added template for Discussions 4 Development
Added template for Sponsor Us
Added template for Contact Us