2018-11-18: Version 1.5.9

Add new option
- stopScrollingOnFocusOut
- transmissionScrolling
- restoreScrollingFromSwitchBack
- disableDoubleClick
- stopWhenBottomOfWindow
Support context-menu
- Start/stop scrolling from context-menu
Other improvement
- Change browser icon from scroling or not

Fix bugs:
- Cannot stop scrolling when change tab
- Cannot start scrolling after tab/window manipulation
- Cannot open modal window after tab/window manipulation
- Cannot close the modal window
Add new option:
- stopScrollingOnHover
- Stop scrolling when cursor is hovering on html element
- Thanks for @jpsouzasilva
- keybindSingleClick
- Fire single-click action when shortcut is typed
- Thanks for @jpsouzasilva
Other improvement
- scrolling speed is change more slower / faster

New Feature: Quickly access the addon options.
When user double click the browser icon on the toolbar, then the option window is opened. And you can change the option directly without that you have to go the option page through the some page navigation.

A bit sacrifice: The timing of starting scrolling is a little late.
To implement the "Quickly access the options", the starting timing of scrolling is lazy. Specifically, 0.5 second. Also, the stopping timing of scrolling is a little lazy too.

Feature of next version
The lazy time of starting and stopping scrolling is set to 0.5 second temporary.
I think that the double click interval(i.e. the time between first click and second click).
So I will do than user change the interval time.

In new version(1.2.7), user can stop scrolling when you click the scrolling window.
User can enable/disable the setting on add-on option page of this plugin.

And some bugs are fixed and this add-on is better.
- the guid of this plugin is changed to original guid which is issued by AMO.
- improve of visibility of icon.

New version(1.1.5) of this plugin has no new functions.
This update is improvement of stability and convenience.

1. Application ID of this plugin is set to fix warnings about "Extensions and the add-on ID"(1.1.3).
2. Application errors are logged to review and debug the plugin(1.1.4).
3. All speed setting is synchronized in the firefox browser(1.1.5).

Fix bugs about auto-scrolling is stopped when firefox active window is switched to another firefox window.

Previous version(1.1.1), when firefox active window is switched to another window which is not firefox, the auto-scrolling is not stopped and continue.
But when the window is switched to another firefox window, the scrolling is stopped.
In new version(1.1.2), this plugin enable that user can browsing some websites in firefox while viewing some websites in firefox.

1.0: Creating this plugin.
1.0.1: Fixing bugs: unexpectedly starting of auto-scrolling
1.1: Controlling the scrolling speed.