General code cleanups

* Use default member initializers
* Use range-based for loops
* Avoid needless pointer references for ShopItem::mDuplicates
* Removed type aliases that are only used once or twice
* Removed more unused includes
* Removed some unused functions
* Removed superfluous .c_str()
* Rely on default copy and assignment operators for Vector class
* Use std::unique_ptr in some places
* Removed duplicated mPlayerMoney updating in SellDialog
* Removed duplicated Game::handleInput call
* Removed unused SDLInput::mMouseInWindow
* Removed remnant of manual widget positioning in HelpWindow
* Removed superfluous initialization of static pointers

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/widgets/linkhandler.h b/src/gui/widgets/linkhandler.h
index dab42a24..33263a25 100644
--- a/src/gui/widgets/linkhandler.h
+++ b/src/gui/widgets/linkhandler.h
@@ -31,7 +31,7 @@
 class LinkHandler
 {
     public:
-        virtual ~LinkHandler() { }
+        virtual ~LinkHandler() = default;
 
         virtual void handleLink(const std::string &link) = 0;
 };