Revert "Interfaces->Abstractions"

This reverts commit ec7a4351de.

Hosting.sln

@@ -20,9 +20,9 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		global.json = global.json
 	EndProjectSection
 EndProject
-Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Microsoft.AspNet.Hosting.Abstractions", "src\Microsoft.AspNet.Hosting.Abstractions\Microsoft.AspNet.Hosting.Abstractions.xproj", "{BB780FBB-7842-4759-8DE7-96FA2E5571C1}"
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Microsoft.AspNet.Hosting.Interfaces", "src\Microsoft.AspNet.Hosting.Interfaces\Microsoft.AspNet.Hosting.Interfaces.xproj", "{BB780FBB-7842-4759-8DE7-96FA2E5571C1}"
 EndProject
-Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Microsoft.AspNet.Hosting.Server.Abstractions", "src\Microsoft.AspNet.Hosting.Server.Abstractions\Microsoft.AspNet.Hosting.Server.Abstractions.xproj", "{FDBBA081-5248-4FC0-9E08-B46BEF3FA438}"
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Microsoft.AspNet.Hosting.Server.Interfaces", "src\Microsoft.AspNet.Hosting.Server.Interfaces\Microsoft.AspNet.Hosting.Server.Interfaces.xproj", "{FDBBA081-5248-4FC0-9E08-B46BEF3FA438}"
 EndProject
 Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Microsoft.AspNet.Server.Testing", "src\Microsoft.AspNet.Server.Testing\Microsoft.AspNet.Server.Testing.xproj", "{3DA89347-6731-4366-80C4-548F24E8607B}"
 EndProject

src/Microsoft.AspNet.Hosting.Interfaces/project.json

@@ -1,6 +1,6 @@
 {
     "version": "1.0.0-*",
-    "description": "ASP.NET 5 Hosting abstractions.",
+    "description": "ASP.NET 5 Hosting interfaces.",
     "dependencies": {
         "Microsoft.AspNet.Http.Abstractions": "1.0.0-*",
         "Microsoft.AspNet.FileProviders.Interfaces": "1.0.0-*",

src/Microsoft.AspNet.Hosting/project.json

@@ -4,8 +4,8 @@
     "compilationOptions": { "warningsAsErrors": "true" },
     "dependencies": {
         "Microsoft.AspNet.FileProviders.Physical": "1.0.0-*",
-        "Microsoft.AspNet.Hosting.Abstractions": "1.0.0-*",
+        "Microsoft.AspNet.Hosting.Interfaces": "1.0.0-*",
-        "Microsoft.AspNet.Hosting.Server.Abstractions": "1.0.0-*",
+        "Microsoft.AspNet.Hosting.Server.Interfaces": "1.0.0-*",
         "Microsoft.AspNet.Http": "1.0.0-*",
         "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
         "Microsoft.Framework.ConfigurationModel": "1.0.0-*",