Assignee field like Jira #2452 , in progress.

Added features:
- Assignee can now be added and removed.
- Avatar icon is at card and assignee details

TODO:
- When selecting new assignee (+) icon, list does not yet show avatars and names who to add.
  There is empty avatar without name.

Thanks to xet7 !

client/components/users/userAvatar.jade

@@ -15,23 +15,6 @@ template(name="userAvatar")
           a.edit-avatar.js-change-avatar
             i.fa.fa-pencil
 
-template(name="userAvatarAssignee")
-  a.assignee.js-assignee(title="{{userData.profile.fullname}} ({{userData.username}})")
-    if userData.profile.avatarUrl
-      img.avatar.avatar-image(src="{{userData.profile.avatarUrl}}")
-    else
-      +userAvatarInitials(userId=userData._id)
-
-    if showStatus
-      span.assignee-presence-status(class=presenceStatusClassName)
-      span.assignee-type(class=assigneeType)
-
-    unless isSandstorm
-      if showEdit
-        if $eq currentUser._id userData._id
-          a.edit-avatar.js-change-avatar
-            i.fa.fa-pencil
-
 template(name="userAvatarInitials")
   svg.avatar.avatar-initials(viewBox="0 0 {{viewPortWidth}} 15")
     text(x="50%" y="13" text-anchor="middle")= initials
@@ -95,18 +78,3 @@ template(name="cardMemberPopup")
       if $eq currentUser._id user._id
         with currentUser
           li: a.js-edit-profile {{_ 'edit-profile'}}
-
-template(name="cardAssigneePopup")
-  .board-assignee-menu
-    .mini-profile-info
-      +userAvatar(userId=user._id showEdit=true)
-      .info
-        h3= user.profile.fullname
-        p.quiet @{{ user.username }}
-    ul.pop-over-list
-      if currentUser.isNotCommentOnly
-          li: a.js-remove-assignee {{_ 'remove-member-from-card'}}
-
-      if $eq currentUser._id user._id
-        with currentUser
-          li: a.js-edit-profile {{_ 'edit-profile'}}

client/components/users/userAvatar.js

@@ -139,13 +139,6 @@ Template.cardMembersPopup.helpers({
     return _.contains(cardMembers, this.userId);
   },
 
-  isCardAssignee() {
-    const card = Template.parentData();
-    const cardAssignees = card.getAssignees();
-
-    return _.contains(cardAssignees, this.userId);
-  },
-
   user() {
     return Users.findOne(this.userId);
   },
@@ -173,26 +166,3 @@ Template.cardMemberPopup.events({
   },
   'click .js-edit-profile': Popup.open('editProfile'),
 });
-
-Template.cardAssigneesPopup.events({
-  'click .js-select-assignee'(event) {
-    const card = Cards.findOne(Session.get('currentCard'));
-    const assigneeId = this.userId;
-    card.toggleAssignee(assigneeId);
-    event.preventDefault();
-  },
-});
-
-Template.cardAssigneePopup.helpers({
-  user() {
-    return Users.findOne(this.userId);
-  },
-});
-
-Template.cardAssigneePopup.events({
-  'click .js-remove-assignee'() {
-    Cards.findOne(this.cardId).unassignAssignee(this.userId);
-    Popup.close();
-  },
-  'click .js-edit-profile': Popup.open('editProfile'),
-});

client/components/users/userAvatar.styl

@@ -2,8 +2,7 @@
 
 avatar-radius = 50%
 
-.member,
-.assignee
+.member
   border-radius: 3px
   display: block
   position: relative
@@ -33,8 +32,7 @@ avatar-radius = 50%
       height: 100%
       width: @height
 
-  .member-presence-status,
-  .assignee-presence-status
+  .member-presence-status
     background-color: #b3b3b3
     border: 1px solid #fff
     border-radius: 50%
@@ -81,8 +79,7 @@ avatar-radius = 50%
       color: white
 
 
-  &.add-member,
-  &.add-assignee
+  &.add-member
     display: flex
     align-items: center
     justify-content: center
@@ -114,8 +111,7 @@ avatar-radius = 50%
     p
       padding-top: 0
 
-  .member,
-  .assignee
+  .member
     width: 50px
     height: @width
     margin-right: 10px