Shorter animations

This patch cuts down animation time quite considerably. We've discussed
this during the sprint. The default long animation is now 120ms instead
of 250. We have played around with different values, and this seemed to
hit sweet spot between the interface feeling really snappy, but the
animations still visible, so no sudden transitions in the UI.

We should consider doing something similar for kwin animations.

Reviewed-by: Kai Uwe & Marco

CCMAIL:plasma-devel@kde.org
CCMAIL:kwin@kde.org

src/declarativeimports/core/units.cpp

@@ -35,7 +35,7 @@
 
 const QString plasmarc = QStringLiteral("plasmarc");
 const QString groupName = QStringLiteral("Units");
-const int defaultLongDuration = 250;
+const int defaultLongDuration = 120;
 
 Units::Units(QObject *parent)
     : QObject(parent),