Fix spelling issue.

Author: turing-tech

lib/build.gradle

@@ -1,6 +1,6 @@
 apply plugin: 'com.android.library'
 
-def libVersion = '13.0.0'
+def libVersion = '13.0.1'
 
 android {
     compileSdkVersion 26

lib/src/main/java/com/turingtechnologies/materialscrollbar/MaterialScrollBar.java

@@ -178,17 +178,17 @@ Handle setUpHandle(Context context, Boolean lightOnTouch){
 
     //Implements optional attributes.
     void implementPreferences(){
-        if(a.hasValue(R.styleable.MaterialScrollBar_msb_barColour)){
-            setBarColour(a.getColor(R.styleable.MaterialScrollBar_msb_barColour, 0));
+        if(a.hasValue(R.styleable.MaterialScrollBar_msb_barColor)){
+            setBarColour(a.getColor(R.styleable.MaterialScrollBar_msb_barColor, 0));
         }
-        if(a.hasValue(R.styleable.MaterialScrollBar_msb_handleColour)){
-            setHandleColour(a.getColor(R.styleable.MaterialScrollBar_msb_handleColour, 0));
+        if(a.hasValue(R.styleable.MaterialScrollBar_msb_handleColor)){
+            setHandleColour(a.getColor(R.styleable.MaterialScrollBar_msb_handleColor, 0));
         }
-        if(a.hasValue(R.styleable.MaterialScrollBar_msb_handleOffColour)){
-            setHandleOffColour(a.getColor(R.styleable.MaterialScrollBar_msb_handleOffColour, 0));
+        if(a.hasValue(R.styleable.MaterialScrollBar_msb_handleOffColor)){
+            setHandleOffColour(a.getColor(R.styleable.MaterialScrollBar_msb_handleOffColor, 0));
         }
-        if(a.hasValue(R.styleable.MaterialScrollBar_msb_textColour)){
-            setTextColour(a.getColor(R.styleable.MaterialScrollBar_msb_textColour, 0));
+        if(a.hasValue(R.styleable.MaterialScrollBar_msb_textColor)){
+            setTextColour(a.getColor(R.styleable.MaterialScrollBar_msb_textColor, 0));
         }
         if(a.hasValue(R.styleable.MaterialScrollBar_msb_barThickness)){
             setBarThickness(a.getDimensionPixelSize(R.styleable.MaterialScrollBar_msb_barThickness, 0));