Add member name to avatars as the title since if displayed without accompanying text (as with read receipts) they can be somewhat unhelpful. May as well have them all the time I think.

src/skins/vector/views/atoms/MemberAvatar.js

@@ -54,7 +54,7 @@ module.exports = React.createClass({
                           style={{ fontSize: (this.props.width * 0.75) + "px",
                                    width: this.props.width + "px",
                                    lineHeight: this.props.height*1.2 + "px" }}>{ initial }</span>
-                    <img className="mx_MemberAvatar_image" src={this.state.imageUrl}
+                    <img className="mx_MemberAvatar_image" src={this.state.imageUrl} title={this.props.member.name}
                          onError={this.onError} width={this.props.width} height={this.props.height} />
                 </span>
             );            
@@ -63,6 +63,7 @@ module.exports = React.createClass({
             <img className="mx_MemberAvatar mx_MemberAvatar_image" src={this.state.imageUrl}
                 onError={this.onError}
                 width={this.props.width} height={this.props.height}
+                title={this.props.member.name}
                 {...this.props}
             />
         );