Fix casing of TooltipButton

My brain can't deal with two different ways to write "Tooltip", so this
converges the naming to match the rest of the code base. Separate commits will
fix up the file names for case-insensitive file systems.

res/css/_components.scss

@@ -99,8 +99,8 @@
 @import "./views/elements/_SyntaxHighlight.scss";
 @import "./views/elements/_TextWithTooltip.scss";
 @import "./views/elements/_ToggleSwitch.scss";
-@import "./views/elements/_ToolTipButton.scss";
 @import "./views/elements/_Tooltip.scss";
+@import "./views/elements/_TooltipButton.scss";
 @import "./views/elements/_Validation.scss";
 @import "./views/globals/_MatrixToolbar.scss";
 @import "./views/groups/_GroupPublicityToggle.scss";

res/css/views/elements/_ToolTipButton.scss

@@ -1,5 +1,6 @@
 /*
 Copyright 2017 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -14,7 +15,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-.mx_ToolTipButton {
+.mx_TooltipButton {
     display: inline-block;
     width: 11px;
     height: 11px;
@@ -33,17 +34,17 @@ limitations under the License.
     cursor: pointer;
 }
 
-.mx_ToolTipButton:hover {
+.mx_TooltipButton:hover {
     opacity: 1.0;
 }
 
-.mx_ToolTipButton_container {
+.mx_TooltipButton_container {
     position: relative;
     top: -18px;
     left: 4px;
 }
 
-.mx_ToolTipButton_helpText {
+.mx_TooltipButton_helpText {
     width: 400px;
     text-align: start;
     line-height: 17px !important;

src/components/structures/GroupView.js

@@ -1,6 +1,7 @@
 /*
 Copyright 2017 Vector Creations Ltd.
 Copyright 2017, 2018 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -861,9 +862,9 @@ export default React.createClass({
         const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
         const TintableSvg = sdk.getComponent('elements.TintableSvg');
         const Spinner = sdk.getComponent('elements.Spinner');
-        const ToolTipButton = sdk.getComponent('elements.ToolTipButton');
+        const TooltipButton = sdk.getComponent('elements.TooltipButton');
 
-        const roomsHelpNode = this.state.editing ? <ToolTipButton helpText={
+        const roomsHelpNode = this.state.editing ? <TooltipButton helpText={
             _t(
                 'These rooms are displayed to community members on the community page. '+
                 'Community members can join the rooms by clicking on them.',

src/components/views/elements/ToolTipButton.js

@@ -1,5 +1,6 @@
 /*
 Copyright 2017 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -18,7 +19,7 @@ import React from 'react';
 import sdk from '../../../index';
 
 module.exports = React.createClass({
-    displayName: 'ToolTipButton',
+    displayName: 'TooltipButton',
 
     getInitialState: function() {
         return {
@@ -41,12 +42,12 @@ module.exports = React.createClass({
     render: function() {
         const Tooltip = sdk.getComponent("elements.Tooltip");
         const tip = this.state.hover ? <Tooltip
-            className="mx_ToolTipButton_container"
-            tooltipClassName="mx_ToolTipButton_helpText"
+            className="mx_TooltipButton_container"
+            tooltipClassName="mx_TooltipButton_helpText"
             label={this.props.helpText}
         /> : <div />;
         return (
-            <div className="mx_ToolTipButton" onMouseOver={this.onMouseOver} onMouseOut={this.onMouseOut} >
+            <div className="mx_TooltipButton" onMouseOver={this.onMouseOver} onMouseOut={this.onMouseOut} >
                 ?
                 { tip }
             </div>

src/components/views/rooms/EventTile.js

@@ -1,6 +1,7 @@
 /*
 Copyright 2015, 2016 OpenMarket Ltd
 Copyright 2017 New Vector Ltd
+Copyright 2019 The Matrix.org Foundation C.I.C.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -670,13 +671,13 @@ module.exports = withMatrixClient(React.createClass({
                 {'requestLink': (sub) => <a onClick={this.onRequestKeysClick}>{ sub }</a>},
             );
 
-        const ToolTipButton = sdk.getComponent('elements.ToolTipButton');
+        const TooltipButton = sdk.getComponent('elements.TooltipButton');
         const keyRequestInfo = isEncryptionFailure ?
             <div className="mx_EventTile_keyRequestInfo">
                 <span className="mx_EventTile_keyRequestInfo_text">
                     { keyRequestInfoContent }
                 </span>
-                <ToolTipButton helpText={keyRequestHelpText} />
+                <TooltipButton helpText={keyRequestHelpText} />
             </div> : null;
 
         let reactionsRow;