Merge pull request #2 from YBogomolov/master

Add JingRequestHandler to ClipboardChanger plant.
Merge pull request #3 from YBogomolov/master

Fixed issue with duplicating menu separators
Cosmetic change in App.config
Change some types of exceptions in Assert
Introducing NativeHelper to store PInvoke
Totally reworked ClipboardObserver

The ClipboardObserver was totally reworked. Old implementation monitored
clipboard in loop which hurt the performance.
Was reworked to rely on events from OS. Also introduced buffered text
limit.
Adding debug converter
ConfigurationControl XAML refactoring
Change tab indent in XAML
Change name of property to more relevant
Introduce base IConfigurationAwarePlayer

Splitted old IConfigurationAwarePlayer interface into 2 ones:
IConfigurationAwarePlayer (more base) and
IConfigurationAwarePlayerWithValues (more specific)
Add BooleanNotConverter to App.xaml
Add Action setting entry + dummy setting injector

Action setting allows to bind action for command. In this case Runtime
Setting is rendered as label:button.
dummy setting is rendered in Application config window and is present if
DEBUG only.
Fix runtime setting "AllowEditing"
Remove unused code
remove unused code
Add Additional actions functionality
Dummy update
A lot of changes, move "UserSetting" service config to icon