Merge pull request #100 from bbondy/master

Various fixes and features
Added store manifest file to support pre-installations.

Conflicts:
	KhanAcademy/package.appxmanifest
Merge pull request #105 from anprak/master

Added store manifest file to support pre-installations.
Upgraded to TypeScript v1.0 from pre-release versions. Switched type definition files for WinJS and WinRT to NuGet packages to get regular updates.
Merge pull request #107 from anprak/master

Upgraded to TypeScript v1.0 from pre-release versions. Switched type def...
Issue #13 - Base implementation for reporting points for watched videos.
Merge branch 'master' of https://github.com/khan/khan-windows