diff --git a/packagestructure.cpp b/packagestructure.cpp
index 5b3edb6e1..7552edea1 100644
--- a/packagestructure.cpp
+++ b/packagestructure.cpp
@@ -23,6 +23,7 @@
 
 #include <QDir>
 #include <QMap>
+#include <QMutableListIterator>
 #include <QFileInfo>
 
 #include <kconfiggroup.h>
@@ -548,6 +549,17 @@ QStringList PackageStructure::contentsPrefixPaths() const
 void PackageStructure::setContentsPrefixPaths(const QStringList &prefixPaths)
 {
     d->contentsPrefixPaths = prefixPaths;
+
+    // the code assumes that the prefixes have a trailing slash
+    // so let's make that true here
+    QMutableStringListIterator it(d->contentsPrefixPaths);
+    while (it.hasNext()) {
+        it.next();
+
+        if (!it.value().endsWith('/')) {
+            it.setValue(it.value() % '/');
+        }
+    }
 }
 
 bool PackageStructure::installPackage(const QString &package, const QString &packageRoot)
diff --git a/private/packages.cpp b/private/packages.cpp
index 2519341ae..10effd0fd 100644
--- a/private/packages.cpp
+++ b/private/packages.cpp
@@ -34,7 +34,9 @@
 #include <knewstuff3/downloaddialog.h>
 #endif
 
-#include "plasma/private/wallpaper_p.h"
+#include "kdeclarative.h"
+
+#include "private/wallpaper_p.h"
 
 namespace Plasma
 {
@@ -42,12 +44,15 @@ namespace Plasma
 PlasmoidPackage::PlasmoidPackage(QObject *parent)
     : Plasma::PackageStructure(parent, QString("Plasmoid"))
 {
-    QString pathsString(getenv("PLASMA_CUSTOM_PREFIX_PATHS"));
-    if (!pathsString.isEmpty()) {
-        QStringList prefixPaths(pathsString.split(":"));
-        if (!prefixPaths.isEmpty()) {
-            setContentsPrefixPaths(prefixPaths);
+    QStringList platform = KDeclarative::runtimePlatform();
+    if (!platform.isEmpty()) {
+        QMutableStringListIterator it(platform);
+        while (it.hasNext()) {
+            it.next();
+            it.setValue("platformcontents/" + it.value());
         }
+        platform.append("contents");
+        setContentsPrefixPaths(platform);
     }
 
     addDirectoryDefinition("images", "images", i18n("Images"));
diff --git a/runnercontext.cpp b/runnercontext.cpp
index 5d57540d9..abd6a4bc7 100644
--- a/runnercontext.cpp
+++ b/runnercontext.cpp
@@ -483,6 +483,37 @@ bool RunnerContext::removeMatch(const QString matchId)
     return true;
 }
 
+bool RunnerContext::removeMatches(Plasma::AbstractRunner *runner)
+{
+    if (!isValid()) {
+        return false;
+    }
+
+    QList<QueryMatch> presentMatchList;
+
+    LOCK_FOR_READ(d)
+    foreach(const QueryMatch &match, d->matches) {
+        if (match.runner() == runner) {
+            presentMatchList << match;
+        }
+    }
+    UNLOCK(d)
+
+    if (presentMatchList.isEmpty()) {
+        return false;
+    }
+
+    LOCK_FOR_WRITE(d)
+    foreach (const QueryMatch &match, presentMatchList) {
+        d->matchesById.remove(match.id());
+        d->matches.removeAll(match);
+    }
+    UNLOCK(d)
+
+    emit d->q->matchesChanged();
+    return true;
+}
+
 QList<QueryMatch> RunnerContext::matches() const
 {
     LOCK_FOR_READ(d)
diff --git a/runnercontext.h b/runnercontext.h
index 4bc7ee92b..741ac59c7 100644
--- a/runnercontext.h
+++ b/runnercontext.h
@@ -163,9 +163,9 @@ class PLASMA_EXPORT RunnerContext : public QObject
          * @param matchId the id of match to remove
          *
          * @return true if the match was removed, false otherwise.
-	 * @since 4.4
+         * @since 4.4
          */
-	bool removeMatch(const QString matchId);
+        bool removeMatch(const QString matchId);
 
         /**
          * Removes lists of matches from the existing list of matches.
@@ -179,6 +179,18 @@ class PLASMA_EXPORT RunnerContext : public QObject
          */
         bool removeMatches(const QStringList matchIdList);
 
+        /**
+         * Removes lists of matches from a given AbstractRunner
+         *
+         * This method is thread safe and causes the matchesChanged() signal to be emitted.
+         *
+         * @param runner the AbstractRunner from which to remove matches
+         *
+         * @return true if at least one match was removed, false otherwise.
+         * @since 4.10
+         */
+        bool removeMatches(AbstractRunner *runner);
+
         /**
          * Retrieves all available matches for the current search term.
          *
diff --git a/theme.cpp b/theme.cpp
index 409abe1ff..2ce1671f0 100644
--- a/theme.cpp
+++ b/theme.cpp
@@ -170,7 +170,7 @@ public:
 #ifdef Q_WS_X11
     static EffectWatcher *s_blurEffectWatcher;
 #endif
-    
+
     Theme *q;
     QString themeName;
     QList<QString> fallbackThemes;
diff --git a/theme.h b/theme.h
index 29c81df98..718c6934e 100644
--- a/theme.h
+++ b/theme.h
@@ -193,12 +193,12 @@ class PLASMA_EXPORT Theme : public QObject
         Q_INVOKABLE QFont font(FontRole role) const;
 
         /**
-         * Returns the font metrics for the font to be used by themed items
+         * @return the font metrics for the font to be used by themed items
          */
         Q_INVOKABLE QFontMetrics fontMetrics() const;
 
         /**
-         * Returns if the window manager effects (e.g. translucency, compositing) is active or not
+         * @return true if the window manager effects (e.g. translucency, compositing) is active or not
          */
         Q_INVOKABLE bool windowTranslucencyEnabled() const;