add import button
add upload form + send mail on submission
Merge remote-tracking branch 'origin/library-import' into V3 + adding desc on the upload page

Conflicts:
	CivikeyWebsite/CivikeyWebsite.csproj
	CivikeyWebsite/Content/styles/site.less
	CivikeyWebsite/Controllers/HomeController.cs
	CivikeyWebsite/Views/Home/Keyboards.cshtml
	CivikeyWebsite/packages.config
Keyboard submission destination is now configurable through the web.config file