Added sponsor SDK classes
Merge branch 'master' into richard_dev
Got static list adapter to display. Now for the actual model to display
Merge branch 'master' into richard_dev

Conflicts:
	.idea/gradle.xml
	TedXEventApp/src/main/res/drawable-hdpi/event_image.ping
	TedXEventApp/src/main/res/drawable-mdpi/event_image.ping
	TedXEventApp/src/main/res/drawable-xhdpi/event_image.ping
Got some sponsor image stuff to work
Merge branch 'master' into richard_dev

Conflicts:
	TedXEventApp/build.gradle
Added Andrew's image loader and displayer for the sponsor.  Still need to make the sponsor converter (and all the converters on Wednesday)
Added DTOs for talk and sponsor
Removed circular references from DTO
Made SponsorConverter
Wrote all converters from DTO to model. No IsActive.  Dates are strings.