fix unhandled exception in ProjectDetailsHandler

services/web/app/coffee/Features/Project/ProjectDetailsHandler.coffee

@@ -10,7 +10,7 @@ module.exports =
 
 	getDetails: (project_id, callback)->
 		ProjectGetter.getProject project_id, {name:true, description:true, compiler:true, features:true, owner_ref:true}, (err, project)->
-			if err?
+			if err? or !project?
 				logger.err err:err, project_id:project_id, "error getting project"
 				return callback(err)
 			UserGetter.getUser project.owner_ref, (err, user) ->

services/web/test/UnitTests/coffee/Project/ProjectDetailsHandlerTests.coffee

@@ -48,6 +48,13 @@ describe 'ProjectDetailsHandler', ->
 				assert.equal(details.something, undefined)
 				done()
 
+		it "should return an error for a non-existent project", (done)->
+			@ProjectGetter.getProject.callsArg(2, null, null)
+			@handler.getDetails "0123456789012345678901234", (err, details)=>
+				assert.equal(err, undefined)
+				assert.equal(details, undefined)
+				done()
+
 		it "should return the error", (done)->
 			error = "some error"
 			@ProjectGetter.getProject.callsArgWith(2, error)