So if someone notices later some Qt header is included in the form
of "#include <Class>" instead of the more common form of "#include
<Module/Class>", do not rush changing it.
REVIEW: 105819
This reduces:
* The duplicated code for setting up that push button
* The duplicate entries in ui files for the Text and ToolTip
Note: there are still quite some duplicate between RenameTabsDialog and
EditProfileDialog. Maybe it is good idea to create a customized widget
EditTabTitleWidget to reduce the duplicate
