This change adds a preference to disable inline rename for the Project
Explorer view. The preference is available under Window -> Preferences
-> General. It can also be configured via product customization, with
the line:

org.eclipse.ui.workbench/RESOURCE_RENAME_MODE=dialog

Per default, inline rename remains on.

Change-Id: I5630b640ee6ce4e28150dbf28ef799517f518ff2
Signed-off-by: Simeon Andreev <simeon.danailov.andreev@gmail.com>