Add command locator.

Make it possible to trigger actions from the locator bar by
registering an instance of Locator::CommandLocator by prefix.
Currently used for VCS systems.

Acked-by: con
Initial-patch-by: Roberto Raggi <roberto.raggi@nokia.com>

src/plugins/mercurial/mercurialplugin.h

@@ -60,6 +60,10 @@ namespace VCSBase {
 class VCSBaseSubmitEditor;
 }
 
+namespace Locator {
+    class CommandLocator;
+}
+
 namespace Mercurial {
 namespace Internal {
 
@@ -150,6 +154,7 @@ private:
     MercurialClient *m_client;
 
     Core::ICore *core;
+    Locator::CommandLocator *m_commandLocator;
     Core::ActionManager *actionManager;
     Core::ActionContainer *mercurialContainer;