Get that ExistenceCheckRemoteOperation remembers the sequence of followed redirections after its execution

Conflicts fixed:
	src/com/owncloud/android/lib/common/operations/RemoteOperationResult.java
	src/com/owncloud/android/lib/resources/files/RenameRemoteFileOperation.java

src/com/owncloud/android/lib/common/network/RedirectionPath.java

@@ -0,0 +1,127 @@
+/* ownCloud Android Library is available under MIT license
+ *
+ *   @author David A. Velasco
+ *
+ *   Copyright (C) 2015 ownCloud Inc.
+ *
+ *   Permission is hereby granted, free of charge, to any person obtaining a copy
+ *   of this software and associated documentation files (the "Software"), to deal
+ *   in the Software without restriction, including without limitation the rights
+ *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *   copies of the Software, and to permit persons to whom the Software is
+ *   furnished to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included in
+ *   all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ *   THE SOFTWARE.
+ *
+ */
+
+package com.owncloud.android.lib.common.network;
+
+import org.apache.http.HttpStatus;
+
+import java.util.Arrays;
+
+
+/**
+ * Aggregate saving the list of URLs followed in a sequence of redirections during the exceution of a
+ * {@link com.owncloud.android.lib.common.operations.RemoteOperation}, and the status codes corresponding to all
+ * of them.
+ *
+ * The last status code saved corresponds to the first response not being a redirection, unless the sequence exceeds
+ * the maximum length of redirections allowed by the {@link com.owncloud.android.lib.common.OwnCloudClient} instance
+ * that ran the operation.
+ *
+ * If no redirection was followed, the last (and first) status code contained corresponds to the original URL in the
+ * request.
+ */
+public class RedirectionPath {
+
+    private int[] mStatuses = null;
+
+    private int mLastStatus = -1;
+
+    private String[] mLocations = null;
+
+    private int mLastLocation = -1;
+    private int maxRedirections;
+
+    /**
+     * Public constructor.
+     *
+     * @param status            Status code resulting of executing a request on the original URL.
+     * @param maxRedirections   Maximum number of redirections that will be contained.
+     * @throws IllegalArgumentException     If 'maxRedirections' is < 0
+     */
+    public RedirectionPath(int status, int maxRedirections) {
+        if (maxRedirections < 0) {
+            throw new IllegalArgumentException("maxRedirections MUST BE zero or greater");
+        }
+        mStatuses = new int[maxRedirections + 1];
+        Arrays.fill(mStatuses, -1);
+        mStatuses[++mLastStatus] = status;
+    }
+
+    /**
+     * Adds a new location URL to the list of followed redirections.
+     *
+     * @param location      URL extracted from a 'Location' header in a redirection.
+     */
+    public void addLocation(String location) {
+        if (mLocations == null) {
+            mLocations = new String[mStatuses.length - 1];
+        }
+        if (mLastLocation < mLocations.length - 1) {
+            mLocations[++mLastLocation] = location;
+        }
+    }
+
+
+    /**
+     * Adds a new status code to the list of status corresponding to followed redirections.
+     *
+     * @param status     Status code from the response of another followed redirection.
+     */
+    public void addStatus(int status) {
+        if (mLastStatus < mStatuses.length - 1) {
+            mStatuses[++mLastStatus] = status;
+        }
+    }
+
+    /**
+     * @return      Last status code saved.
+     */
+    public int getLastStatus() {
+        return mStatuses[mLastStatus];
+    }
+
+    /**
+     * @return      Last location followed corresponding to a permanent redirection (status code 301).
+     */
+    public String getLastPermanentLocation() {
+        for (int i = mLastStatus; i >= 0; i--) {
+            if (mStatuses[i] == HttpStatus.SC_MOVED_PERMANENTLY && i <= mLastLocation) {
+                return mLocations[i];
+            }
+        }
+        return null;
+    }
+
+    /**
+     * @return      Count of locations.
+     */
+    public int getRedirectionsCount() {
+        return mLastLocation + 1;
+    }
+
+
+}