[ER] Eleeminator terminal emulator plugin stubs.
[Tools] Disable ELEEMINATOR on builders lacking qtermwidget :(
[ER] Implement IHaveTabs & have a tab.
[ER] Find QTermWidget.
[ER] Instantiate QTermWidget.
[ER] Handle finished() signal.
[ER] Raise the tab after opening.
[ER] Set focus after opening.
[Core] Support iconable toolbuttons.
[Core] Fixed code style.