Fixes ArcticaProject/nx-libs#779

Attributes GH PR #939: https://github.com/ArcticaProject/nx-libs/pull/939

Attributes GH PR #938: https://github.com/ArcticaProject/nx-libs/pull/938

Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>

Attributes GH PR #944: https://github.com/ArcticaProject/nx-libs/pull/944

By casting the rrScrPriv to ScreenPtr we are using the offsets from
the Screen structure for referencing data in the rrScrPriv structure
causing data corruption. As both macros use the same casting this
still works until the location where the data resides is
overwritten. For 64bit the location was the "rotations" member in
rrScrPriv which was not problematic because it is barely used. But on
32bit it was "numCrtcs" which is heavily used. On unwrap this was 0
and lead to a segfault.

Fixes ArcticaProject/nx-libs#943

Attributs GH PR #936: https://github.com/ArcticaProject/nx-libs/pull/936

Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>

Attributs GH PR #930: https://github.com/ArcticaProject/nx-libs/pull/930

Attributes ArcticaProject/nx-libs#241

No functional changes, just clarification/explanation of the existing
code.

Fixes ArcticaProject/nx-libs#926

Attributes GH PR #931: https://github.com/ArcticaProject/nx-libs/pull/931

was previously undocumented.

Fixes ArcticaProject/nx-libs#796

Fixes ArcticaProject/nx-libs#241
Fixes ArcticaProject/nx-libs#495
Fixes ArcticaProject/nx-libs#535
Fixes ArcticaProject/nx-libs#565

Attributes GH PR #934: https://github.com/ArcticaProject/nx-libs/pull/934

Attributes GH PR #918: https://github.com/ArcticaProject/nx-libs/pull/918

instead of sendSelectionNotifyEventToClient + setClientSelectionStage

Moving the client check to sendSelectionNotifyEventToClient enables us
to drop notifyConvertFailure.

and reset the lastClient variables when stage is set to None.

resolve lastClientClientPtr to process id and process name

Attributes GH PR #927: https://github.com/ArcticaProject/nx-libs/pull/927