Merge branch 'master' into feat/approval-new

# Conflicts:
#	models/issue_comment.go
#	models/migrations/migrations.go
#	models/migrations/v64.go
#	models/models.go
#	public/css/index.css

models/fixtures/issue.yml

@@ -3,7 +3,6 @@
   repo_id: 1
   index: 1
   poster_id: 1
-  assignee_id: 1
   name: issue1
   content: content for the first issue
   is_closed: false
@@ -67,7 +66,6 @@
   repo_id: 3
   index: 1
   poster_id: 1
-  assignee_id: 1
   name: issue6
   content: content6
   is_closed: false

models/fixtures/issue_assignees.yml

@@ -0,0 +1,8 @@
+-
+  id: 1
+  assignee_id: 1
+  issue_id: 1
+-
+  id: 2
+  assignee_id: 1
+  issue_id: 6

models/fixtures/issue_user.yml

@@ -3,7 +3,6 @@
   uid: 1
   issue_id: 1
   is_read: true
-  is_assigned: true
   is_mentioned: false
 
 -
@@ -11,7 +10,6 @@
   uid: 2
   issue_id: 1
   is_read: true
-  is_assigned: false
   is_mentioned: false
 
 -
@@ -19,5 +17,4 @@
   uid: 4
   issue_id: 1
   is_read: false
-  is_assigned: false
   is_mentioned: false

models/fixtures/login_source.yml

@@ -0,0 +1 @@
+[] # empty