Do not include qtcreator.pri from _dependencies.pri

Merge-request: 176
Reviewed-by: hjk <qtc-committer@nokia.com>

... on clicking stack frames or disassembler/
memory views.

Introduce flags to openEditorAt, pass
EditorManager::NoModeSwitch where applicable.

Task-number: QTCREATORBUG-2278

 * Fix all warnings about non-explicit constructors except for those
   in 3rdparty code.

Original version looks fine to me, but fails to compile with e.g.
gcc versions Ubuntu 4.4.3-4ubuntu5 and Debian 4.4.4-6.

Reviewed-by: Kai Koehne
Reviewed-by: kh1

Utils::NavigationTreeView is created - as a base class for any Navigation Widget (Side Bar) tree view

Merge-request: 2167
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

Merge-request: 2167
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>