Restore correct formatting

Many lines were not conformant with the project's formatting rules.
This patch should fix all formatting and whitespace issues in the code
base.
A clang-format directive was put around the connect() calls containing
SIGNALs and SLOTs whose signatures would be denormalized because of the
formatting rules.

src/sshagent/AgentSettingsWidget.cpp

@@ -17,9 +17,10 @@
  */
 
 #include "AgentSettingsWidget.h"
-#include "core/Config.h"
 #include "ui_AgentSettingsWidget.h"
 
+#include "core/Config.h"
+
 AgentSettingsWidget::AgentSettingsWidget(QWidget* parent)
     : QWidget(parent)
     , m_ui(new Ui::AgentSettingsWidget())