Added possibility to nickname accounts

app/src/main/res/layout/activity_account.xml

@@ -26,6 +26,24 @@
             android:text="" >
         </TextView>
 
+        <TextView
+            android:id="@+id/NickNameTitle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textSize="18sp"
+            android:text="@string/account_nickname" >
+        </TextView>
+
+        <EditText
+            android:id="@+id/NickName"
+            android:layout_height="wrap_content"
+            android:hint="@string/nickname"
+            android:inputType="textPersonName|textCapWords"
+            android:textSize="18sp"
+            android:autofillHints="name"
+            android:layout_width="fill_parent">
+        </EditText>
+
         <TextView
             android:id="@+id/DisplayNameTitle"
             android:layout_width="wrap_content"

app/src/main/res/values-fi/strings.xml

@@ -92,6 +92,12 @@
     </string>
     <!-- Account Activity -->
     <string name="account">Tili</string>
+    <string name="account_nickname">Tilin lempinimi</string>
+    <string name="account_nickname_help">Lempinimi (jos annettu) millä tämä tili identifioidaan
+        baresip sovelluksessa.</string>
+    <string name="nickname">Tilin lempinimi</string>
+    <string name="invalid_account_nickname">Virheellinen tilin lempinimi \'%1$s\'</string>
+    <string name="non_unique_account_nickname">Lempinimi \'%1$s\' on jo olemassa</string>
     <string name="display_name">Tilin käyttäjän nimi</string>
     <string name="your_name">Tilin käyttäjän nimi</string>
     <string name="display_name_help">Tilin käyttäjän nimi, joka esiintyy

app/src/main/res/values/strings.xml

@@ -101,6 +101,12 @@
     </string>
     <!-- Account Activity -->
     <string name="account">Account</string>
+    <string name="account_nickname">Account Nickname</string>
+    <string name="account_nickname_help">Nickname (if any) used to identify this account within
+        baresip app.</string>
+    <string name="nickname">Nickname of Account</string>
+    <string name="invalid_account_nickname">Invalid Account Nickname \'%1$s\'</string>
+    <string name="non_unique_account_nickname">Nickname \'%1$s\' already exists</string>
     <string name="display_name">Display Name</string>
     <string name="your_name">Your Name</string>
     <string name="display_name_help">Name (if any) used in From URI of outbound requests.</string>