Change 'update default quotas' success and failure messages

Success and failure messages include formatting that adds name,
which makes for awkward phrasing when displayed to the user.
Removed formatting to clarify message text for both success and
failure messages.

Change-Id: Id754ec9cb132ba82c07c13b05c76367739d3faaf
Closes-Bug: #1274654
Make object upload success message translatable.

Since the corresponding request is not ajax, we should
use "force_unicode" to translate the message.

Closes-Bug: #1252089

Change-Id: I76098a0d4b51c5f479deca01cbd3702989a5f162
Merge "Make object upload success message translatable."
Merge "Change 'update default quotas' success and failure messages"