A lot of changes

Remove unused constructor of messages::Message
Fixed LimitedQueueSnapshot _-prefixes
Changed LimitedQueueSnapshot's usage of int to std::size_t
ColorScheme is no longer a singleton
Created a "BaseWidget" class which is pretty much a QWidget except it
has a reference of ColorScheme since most widgets will need a reference
to the style they should use.
BaseWidget can be implemented either with a BaseWidget parent (which
will copy the ColorScheme reference from the parent) or with a
normal QWidget parent and an explicit ColorScheme reference.
Save main window geometry on close
Fix font changing in the Settings Dialog
Update settings library version

src/messages/word.hpp

@@ -75,7 +75,7 @@ public:
         ButtonTimeout = (1 << 22),
 
         EmojiImage = (1 << 23),
-        EmojiText = (1 << 34),
+        EmojiText = (1 << 24),
 
         Default = TimestampNoSeconds | Badges | Username | BitsStatic | FfzEmoteImage |
                   BttvEmoteImage | BttvGifEmoteImage | TwitchEmoteImage | BitsAmount | Text |
@@ -85,6 +85,7 @@ public:
     Word()
     {
     }
+
     explicit Word(LazyLoadedImage *_image, Type getType, const QString &copytext,
                   const QString &getTooltip, const Link &getLink = Link());
     explicit Word(const QString &_text, Type getType, const QColor &getColor,