Sponsor page

Added new sponsor list and button for become of sponsor information
Sponsor page.

Added current sponsors and a call to action to link to becoming a
sponsor
Added API integration for Sponsors, Template files
- Styled the sponsor level identifier for Sponsors
Merge branch 'v5.0-Adding-Sponsors' of github.com:CANHEIT/CANHEIT-2013 into v5.0-Adding-Sponsors

Conflicts:
	css/screen.css
Adjusted the generated sponsors index page to match the prototype
- Added the call to action at the bottom of the sponsor's details page
Made the sponsor level not wrap on the sponsors list
Changed the home page block for Sponsors
- Put the sponsor level on a separate line in the sponsors list page
Adjusted the height of the iframes on the register page to prevent the scroll bar
Updated Speaker's toolkit
- Added Powerpoint template download button
- Added button to download the official font
Added back the about page and geeven image
Fixed the icon placement on the next-steps page
Sponsors Page

Changed the register button colour to stay the same as all other pages.

Left discuss sponship button the secondary-pink colour and put the
first button blue.
Merge branch 'v5.0-Adding-Sponsors' of github.com:CANHEIT/CANHEIT-2013 into v5.0-Adding-Sponsors
Merge branch 'v5.0-Adding-Sponsors' of github.com:CANHEIT/CANHEIT-2013 into v5.0-Adding-Sponsors
Fixed broken js references on sponsors/becoming/
Sponsor page

Hid the "interested in sponsoring"  information only on the desktop
version.
Fixed js references on sponsors/becoming and sponsor's details page