New feature: Interface to allow disabling mouse wheel throttling and …

…adjusting throttling factor. Addresses "slow/delayed and really unresponsive" criticism on issue #83.

Fix: Limited scrolling fix to macOS only as it adds a different bug that is not as prevalent.
Enhancement: Reduced unused font based icons, added new icon for scroll throttle settings.

src/fonts/icons/LICENSE.txt

@@ -37,15 +37,6 @@ Font license info
    Homepage:  http://www.entypo.com
 
 
-## Fontelico
-
-   Copyright (C) 2012 by Fontello project
-
-   Author:    Crowdsourced, for Fontello project
-   License:   SIL (http://scripts.sil.org/OFL)
-   Homepage:  http://fontello.com
-
-
 ## Typicons
 
    (c) Stephen Hutchings 2012
@@ -55,15 +46,6 @@ Font license info
    Homepage:  http://typicons.com/
 
 
-## Linecons
-
-   Copyright (C) 2013 by Designmodo
-
-   Author:    Designmodo for Smashing Magazine
-   License:   CC BY ()
-   Homepage:  http://designmodo.com/linecons-free/
-
-
 ## Web Symbols
 
    Copyright (c) 2011 by Just Be Nice studio. All rights reserved.
@@ -73,15 +55,6 @@ Font license info
    Homepage:  http://www.justbenicestudio.com/
 
 
-## Zocial
-
-   Copyright (C) 2012 by Sam Collins
-
-   Author:    Sam Collins
-   License:   MIT (http://opensource.org/licenses/mit-license.php)
-   Homepage:  http://zocial.smcllns.com/
-
-
 ## Modern Pictograms
 
    Copyright (c) 2012 by John Caserta. All rights reserved.