Removed outdated readme info.
overview - removed unused images

Conflicts:
	images/healthtracks/overview/flag-desktop-2.png
	images/healthtracks/overview/flag-desktop-3.png
	images/healthtracks/overview/flag-desktop-4.png
	images/healthtracks/overview/flag-tablet-2.png
	images/healthtracks/overview/flag-tablet-3.png
	images/healthtracks/overview/flag-tablet-4.png
	js/template/Overview.html
survey - disabled by default
test cases - default to debug urls

Conflicts:
	index.html
fetch antech report details and vetstreet report details at the same time
3. --> https://basecamp.com/1856884/projects/1865237-healthtracks/messages/24014318-healthtracks-and
grunt dist - now generates source map only when --source-map option specified

Conflicts:
	Gruntfile.js