[+FEATURE] Fluid (Core/Widget): Added Tx_Fluid_Core_Widget_Bootstrap that is...

[+FEATURE] Fluid (Core/Widget): Added Tx_Fluid_Core_Widget_Bootstrap that is used to dispatch Ajax requests (see ext_typoscript_setup.txt).
[~TASK] Fluid (Compatibility): Removed Tx_Fluid_Compatibility_ObjectManager and replaced instances by Tx_Extbase_Object_ObjectManagerInterface instances
[~TASK] Fluid (Core/Widget): AbstractWidgetController has to be a singleton so it can be injected in the WidgetViewHelper.. To be discussed!
[+TASK] Fluid (Core/Widget): AjaxWidgetContextHolder is now correctly stored in the BE/FE Users session if the ajaxWidget of the corresponding Widget is TRUE.
[+TASK] Fluid (Core/Widget): The WidgetContext now contains a reference to the parent extension & plugin name. That's needed for the widgetAjaxResponse.
[+BUGFIX] Fluid (Core/Widget): WidgetRequestBuilder now correctly interprets GET parameters and dispatches Ajax requests
[+BUGFIX] Fluid (ViewHelpers): Modified ViewHelpers cObject, format.crop, format.html, image, uri.image so that they use dependency injection in order to retrieve the current cObject instance from the configurationManager
[+BUGFIX] Fluid (ViewHelpers): Fixed form ViewHelper to respect configured pluginNamespace in field name prefixes
[+BUGFIX] Fluid (ViewHelpers): link.widget/uri.widget ViewHelpers now create correct URIs
[+BUGFIX] Fluid (ViewHelpers): replaced @inject annotation by injectController method in AutocompleteViewHelper.