[hackers] [sent] Use right click as previous and enable scrolling to switch slides || Ivan Tham

[git]

commit 95af430d978d9ad9a6235ac1899a1ecd46bff6f3
Author:     Ivan Tham <pickf...@riseup.net>
AuthorDate: Thu Nov 19 21:13:25 2015 +0800
Commit:     Markus Teich <markus.te...@stusta.mhn.de>
CommitDate: Thu Nov 19 19:37:08 2015 +0100

    Use right click as previous and enable scrolling to switch slides

diff --git a/config.def.h b/config.def.h
index 9aa6e08..0a56047 100644
--- a/config.def.h
+++ b/config.def.h
@@ -20,7 +20,9 @@ static const float usableheight = 0.75;
 static Mousekey mshortcuts[] = {
        /* button         function        argument */
        { Button1,        advance,        {.i = +1} },
-       { Button2,        advance,        {.i = -1} },
+       { Button3,        advance,        {.i = -1} },
+       { Button4,        advance,        {.i = -1} },
+       { Button5,        advance,        {.i = +1} },
 };
 
 static Shortcut shortcuts[] = {