[BUGFIX] excludeFromUpdates flag ignored

Since the 6.0 Extension Manager, the "excludeFromUpdates" state
is ignored. It should be checked for and the update button in the
list view hidden in such a case.

Resolves: #51018
Releases: 6.0, 6.1, 6.2
Change-Id: I734331d1b85728dc86732f66ad495a9f83cd0aca
Reviewed-on: https://review.typo3.org/23098
Reviewed-by: Philipp Gampe
Tested-by: Philipp Gampe
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind
[BUGFIX] Replace old images by sprite

Adding new images to sprite

Resolves: #50573
Releases: 6.2
Change-Id: I586c206bc84dd44230a6b56ea6e9deaf1d63849f
Reviewed-on: https://review.typo3.org/23546
Reviewed-by: Tymoteusz Motylewski
Tested-by: Tymoteusz Motylewski
Reviewed-by: Piotr Molewski
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters