Merge branch 'master' of https://github.com/fractalwrench/Android-Bootstrap

Author: fractalwrench

…main/assets/fontawesome-webfont-v450.ttf …main/assets/fontawesome-webfont-v470.ttfAndroidBootstrap/src/main/assets/fontawesome-webfont-v450.ttf renamed to AndroidBootstrap/src/main/assets/fontawesome-webfont-v470.ttf AndroidBootstrap/src/main/assets/fontawesome-webfont-v450.ttf renamed to AndroidBootstrap/src/main/assets/fontawesome-webfont-v470.ttf

@@ -283,4 +283,14 @@ protected void updateBootstrapState() {
         bootstrapText = null;
     }
 
+    @Override
+    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
+        super.onTextChanged(text, start, lengthBefore, lengthAfter);
+        if(!(text!=null && text.length()>0)){
+            setVisibility(GONE);
+        }else{
+            setVisibility(VISIBLE);
+        }
+    }
+
 }