o.c.startup.helper: StartupDialog checks for nested workspace.

If user selects a directory "Workspaces/" as the workspace, but that
directory already contains "Workspaces/Workspace1",
"Workspaces/Workspace2", ... there's an error message.
SNS Product: Remove unused o.c.sns.startuphelper
utility.product: removing the deprecated messages

Change-Id: Ib779945d3ab6bce8224010c7273859ba665021dd
utility.product: fixing the preferences.ini
SNS, Basic Products: Remove unused icons (now in o.c.util.product)
FRIB product: removed startup helper from fribcore
SNS PV name lookup: Add highlight marker for matching section; Add "*"
if not provided
o.c.trends.databrowser: Fix search view NPE when no archives

.. as is default for basic.epics product
Merge branch '3.2.x' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x
Merge branch '3.2.x' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x
pvmanager.probe: changelog.html called it "Channel Finder"
o.c.archive.rdb: Update changelog
BOY: add
celleditor
for talbe
widget. See: https://github.com/ControlSystemStudio/cs-studio/issues/122
ui.util: allow celleditor for StringTableEditor.
ITER CSS Product: Adaptation of OPI example resources to PV Manager.
BOY: fix a tooltip bug that some connected PVs may show as
disconnected.
utility.product: fixing bug with reading preferences with empty strings

Change-Id: I94515e132a362f6c7a807ab8a6ee6ab9ac5b1117
Merge branch '3.2.x' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x
Merge branch '3.2.x' of https://github.com/ControlSystemStudio/cs-studio.git into 3.2.x
SNS PV name autocomplete: Use getValue(), not ..OriginalContent()