QmlProfiler: Apply documentation style to sortedtimelinemodel.cpp

Change-Id: I5ed4449b3003d53c27859e11606d4b4dceee229a
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Debugger: Rework editor tooltips handling

Fix expansion and updating.

Persistence and non-locals are still lacking.

Change-Id: I74e25199d50350516afc686a05836e239bfc8acb
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>