[MainActivity] now the menu showes upload log file only if debug mode is enabled

  * This is part of issue #95.
[MainActivity] only showes "delete account" in menu if a DEBUG_TAG is set in Version

  * This is part of issue #95.
[MainActivity] reordered menu

  * This is part of issue #95.
[MainActivity] make sure menu has a fixed order

  * This is part of issue #95.