Add support link to menu, bump version

Closes #94

astrid/src/main/AndroidManifest.xml

@@ -5,8 +5,8 @@
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.tasks"
-    android:versionName="4.6.13"
+    android:versionName="4.6.14"
-    android:versionCode="327">
+    android:versionCode="328">
 
     <!-- widgets, alarms, and services will break if Astrid is installed on SD card -->
     <!--    android:installLocation="internalOnly"> -->

astrid/src/main/java/com/todoroo/astrid/activity/TaskListActivity.java

@@ -10,6 +10,7 @@ import android.app.AlertDialog;
 import android.app.SearchManager;
 import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewPager.OnPageChangeListener;
@@ -525,6 +526,9 @@ public class TaskListActivity extends AstridActivity implements OnPageChangeList
                 rename.putExtra(TagViewFragment.EXTRA_TAG_UUID, renameTag.uuid);
                 startActivityForResult(rename, FilterListFragment.REQUEST_CUSTOM_INTENT);
                 return true;
+            case R.id.menu_support:
+                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://abaker.github.io/tasks/")));
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }

astrid/src/main/res/menu/task_list_activity.xml

@@ -43,4 +43,8 @@
         android:id="@+id/menu_settings"
         android:title="@string/TLA_menu_settings"
         tasks:showAsAction="never" />
+    <item
+        android:id="@+id/menu_support"
+        android:title="@string/TLA_menu_support"
+        tasks:showAsAction="never"/>
 </menu>

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

@@ -3,4 +3,5 @@
     <string name="EPr_use_dark_theme">Dark theme</string>
     <string name="EPr_use_dark_theme_widget">Dark widget theme</string>
     <string name="delete_task">Delete task</string>
+    <string name="TLA_menu_support">Support</string>
 </resources>