unMute

Description

### Features
* Mute/unMute Current Tab
* Auto Mute All Tabs except Current/Recent-Audible/Specified Tab
* Always Mute All Tabs
* Toggle state All Tabs

### Known Issuses
* Sometimes extensions freezing. If you change or refresh tab, it will be work

### ToDo
* and more...

### ChangeLog
* 1.9.1 fix auto mute all tabs except recent-audible tab bugs
* 1.9.0 keep mute when changing tab during auto-mute
* 1.8 add auto mute all tabs except one Specified Tab & add Context Menu for Auto Mute Mode & improve some UI
* 1.7 improve auto mute all tabs except recent-audible tab function (remember recent-audible "tabs") & add always mute all tabs (change mute all tabs to always mute all tabs)
* 1.6 add auto mute indicator when user button is auto mode on/off or auto mode current/recent
* 1.5 add changing page action(user button action) option
* 1.4 add auto mute all tabs except recent-audible tab
* 1.3 add Option page
* 1.2 add Auto Mute All Tabs except Current Tab
* 1.1 add Context Menus
* 1.0 Initial release