Move Assertions from util to internal.

Author: Hajime Morita

rxandroid/src/main/java/rx/android/content/ContentObservable.java

@@ -10,7 +10,7 @@
 import android.os.Handler;
 
 import rx.Observable;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.functions.Func1;
 
 import static rx.android.schedulers.AndroidSchedulers.mainThread;

rxandroid/src/main/java/rx/android/util/Assertions.java renamed to rxandroid/src/main/java/rx/android/internal/Assertions.java

@@ -11,7 +11,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package rx.android.util;
+package rx.android.internal;
 
 import android.os.Looper;
 

rxandroid/src/main/java/rx/android/view/OperatorViewClick.java

@@ -17,7 +17,7 @@
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.android.AndroidSubscriptions;
 import rx.functions.Action0;
 

rxandroid/src/main/java/rx/android/view/ViewObservable.java

@@ -14,13 +14,9 @@
 package rx.android.view;
 
 import android.view.View;
-import android.widget.AbsListView;
-import android.widget.AdapterView;
-import android.widget.CompoundButton;
-import android.widget.TextView;
 
 import rx.Observable;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 
 import static rx.android.schedulers.AndroidSchedulers.mainThread;
 

rxandroid/src/main/java/rx/android/widget/OnSubscribeListViewScroll.java

@@ -18,7 +18,7 @@
 import android.widget.AdapterView;
 import rx.Observable;
 import rx.Subscriber;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.android.AndroidSubscriptions;
 import rx.functions.Action0;
 

rxandroid/src/main/java/rx/android/widget/OperatorAdapterViewOnItemClick.java

@@ -25,7 +25,7 @@
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.android.AndroidSubscriptions;
 import rx.functions.Action0;
 

rxandroid/src/main/java/rx/android/widget/OperatorCompoundButtonInput.java

@@ -19,7 +19,7 @@
 import rx.Subscriber;
 import rx.Subscription;
 import rx.android.view.OnCheckedChangeEvent;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.android.AndroidSubscriptions;
 import rx.functions.Action0;
 

rxandroid/src/main/java/rx/android/widget/OperatorTextViewInput.java

@@ -16,7 +16,7 @@
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.util.Assertions;
+import rx.android.internal.Assertions;
 import rx.android.AndroidSubscriptions;
 import rx.functions.Action0;
 import android.text.Editable;