add/del blit
Fix display numeric item icons

- Required for some custom icons
CMenuWidget: Add function getNextShortcut()/setNextShortcut()

  for setting of direktkey in the plugin integration
CMenuWidget::integratePlugins(): Add shortcut parameter
integrated plugins: Add direct keys
Disable infoclock when display current transponder
Enable gradient for all remaining GUI header
Merge remote-tracking branch 'cool-cst-next/cst-next'
lib/libtuxtxt/tuxtxt.cpp: set 16:9 mode by default
gui/update_settings.cpp: cleanup unused updateItem
gui/update_menue.cpp: fix crash in dtor, CMenuForwarder is deleted on menu delete
gui/user_menue.cpp: add network settings and software update as user-menu items
neutrino.cpp: by request, add network settings and software update to blue user menu
Merge remote-tracking branch 'cool-cst-next/cst-next'

Conflicts:
	src/neutrino.cpp
	src/system/settings.h
CTextBox: Fix center / right text display

- The x position of the text could assume negative values,
  when the text length was greater than the specified range.
Merge remote-tracking branch 'cool-cst-next/cst-next'
Merge branch 'master' of https://github.com/MaxWiesel/neutrino-mp-cst-next