Add UnBan command

Reverses existing Ban command
-Added UnBanCommand class
-Added UnBanUser procedure to IChatServices.cs
-Added UnBanUser procedure to ChatServices.cs

Ban Self Message

-Added message to users who try to ban themselves

IsBanned query command

Added isbanned command
usage:
/isbanned > shows all banned users
/isbanned username > shows if a specific user is banned

Added proper notification for ban/unban/isbanned

Added proper user notification for:
- ban
- unban
- isbanned

Changing group of IsBanned

IsBanned was showing up in the global commands, should be admin only,
changed group for admin.

Adding refs to proj file

Adding compile references to JabbR.csproj
+ IsBannedCommand.cs
+ UnBanCommand.cs

Updated linq isbanned style

Updated linq query styling as recommended

Change casing UnBan > Unban

Changed casing of UnBan to Unban

Simplified ternary in chat.js

Simplified ternary comparison in chat.js

Fixing conflicts in LanguageResources.Designer.cs

Content Providers can be disabled through admin

Makes the built-in content providers togglable from the admin
ui. Now you can turn on/off providers as well as add additional
providers dynamically.

Cleanup some of the startup logic

Resolving merge conflicts

Change casing UnBan > Unban

Changed casing of UnBan to Unban

Configurable Content Providers

- Added configurable content providers
- Removed 8 built-in content providers
- Added 8 default content providers to config

Content Providers can be disabled through admin

Makes the built-in content providers togglable from the admin
ui. Now you can turn on/off providers as well as add additional
providers dynamically.

Cleanup some of the startup logic

Removing duplicate compile entries in csproj

Removing duplicate compile entries in JabbR.csproj