Fix handling not existing repos

Also ensure that we don't break it again with an integration test.

assets/scripts/app/controllers.coffee

@@ -48,6 +48,8 @@ Travis.FirstSyncController = Em.Controller.extend
 
   isSyncing: Ember.computed.alias('user.isSyncing')
 
+Travis.IndexErrorController = Em.Controller.extend()
+
 require 'controllers/accounts'
 require 'controllers/build'
 require 'controllers/builds'

assets/scripts/app/models/repo.coffee

@@ -140,7 +140,10 @@ require 'travis/model'
     if repos.length > 0
       repos[0]
     else
-      @fetch(slug: slug).then (repos) -> Ember.get(repos, 'firstObject')
+      @fetch(slug: slug).then (repos) ->
+        error = new Error('repo not found')
+        error.slug = slug
+        Ember.get(repos, 'firstObject') || throw(error)
 
   # buildURL: (slug) ->
   #   if slug then slug else 'repos'

assets/scripts/app/routes.coffee

@@ -252,9 +252,15 @@ Travis.RepoRoute = Ember.Route.extend
     Travis.Repo.fetchBySlug(slug)
 
   actions:
-    error: ->
-      Ember.run.next this, ->
-        @render('repos/not_found', outlet: 'main')
+    error: (error) ->
+      # if error throwed has a slug (ie. it was probably repo not found)
+      # set the slug on index.error controller to allow to properly
+      # display the repo information
+      if error.slug
+        this.controllerFor('index.error').set('slug', error.slug)
+
+      # bubble to the top
+      return true
 
 Travis.IndexRoute = Ember.Route.extend
   renderTemplate: ->

assets/scripts/spec/integration/routes_spec.coffee

@@ -6,4 +6,8 @@ module "Router",
 
 test 'renders notFound template when URL can\t be found', ->
   visit('/somehing/something/something/.../dark/side/..../something/something/something/.../complete').then ->
-    equal('The requested page was not found.', $('#main').text().trim())
+    equal($('#main').text().trim(), 'The requested page was not found.')
+
+test 'renders repo not found information when repo can\'t be found', ->
+  visit('/what-is-this/i-dont-even').then ->
+    equal($('#main').text().trim(), 'The repository at what-is-this/i-dont-even was not found.')

assets/scripts/spec/support/mocks.coffee

@@ -77,7 +77,9 @@ $.mockjax
     if !settings.data
       this.responseText = { repos: repos }
     else if slug = settings.data.slug
-      this.responseText = { repos: [$.detect(repos, (repository) -> repository.slug == slug)] }
+      repo = $.detect(repos, (repository) -> repository.slug == slug)
+      repos = if repo then [repo] else []
+      this.responseText = { repos: repos }
     else if search = settings.data.search
       this.responseText = { repos: $.select(repos, (repository) -> repository.slug.indexOf(search) > -1).toArray() }
     else if settings.data.member