Only apply support tint on pre-lollipop devices

Closes #352

build.gradle

@@ -27,7 +27,7 @@ android {
     buildToolsVersion "23.0.2"
 
     defaultConfig {
-        versionCode 390
+        versionCode 391
         versionName "4.8.4"
         minSdkVersion 14
         targetSdkVersion 23

src/main/java/org/tasks/ui/PriorityControlSet.java

@@ -19,6 +19,8 @@ import javax.inject.Inject;
 import butterknife.Bind;
 import butterknife.OnClick;
 
+import static com.todoroo.andlib.utility.AndroidUtilities.preLollipop;
+
 public class PriorityControlSet extends TaskEditControlFragment {
 
     public static final int TAG = R.string.TEA_ctrl_importance_pref;
@@ -68,10 +70,12 @@ public class PriorityControlSet extends TaskEditControlFragment {
         } else {
             priorityNone.setChecked(true);
         }
-        tintRadioButton(priorityHigh, 0);
-        tintRadioButton(priorityMedium, 1);
-        tintRadioButton(priorityLow, 2);
-        tintRadioButton(priorityNone, 3);
+        if (preLollipop()) {
+            tintRadioButton(priorityHigh, 0);
+            tintRadioButton(priorityMedium, 1);
+            tintRadioButton(priorityLow, 2);
+            tintRadioButton(priorityNone, 3);
+        }
         return view;
     }
 

src/main/res/layout/control_set_priority.xml

@@ -27,18 +27,22 @@
 
         <android.support.v7.widget.AppCompatRadioButton
             android:id="@+id/priority_none"
+            android:buttonTint="@color/importance_4"
             style="@style/priority_button"/>
 
         <android.support.v7.widget.AppCompatRadioButton
             android:id="@+id/priority_low"
+            android:buttonTint="@color/importance_3"
             style="@style/priority_button"/>
 
         <android.support.v7.widget.AppCompatRadioButton
             android:id="@+id/priority_medium"
+            android:buttonTint="@color/importance_2"
             style="@style/priority_button"/>
 
         <android.support.v7.widget.AppCompatRadioButton
             android:id="@+id/priority_high"
+            android:buttonTint="@color/importance_1"
             style="@style/priority_button"/>
     </RadioGroup>