Elementary theme-bubble: revert 55839 that introduced bugs with no-icon.

Elementary theme-bubble: revert 55839 that introduced bugs with no-icon.

The commit caused bugs when there was no icon, exactly what it claimed
to have fixed. I took a look at the commit and it looked a bit messy,
too messy for me to try to fix. A rewrite makes more sense.

Previous commit message:
From: Sohyun Kim <anna1014.kim@samsung.com>
Subject: [E-devel] [Patch] elm_bubble theme patch

I'm Sohyun Kim. Nice to meet you.

This is a patch for bubble theme.

The bubble has a region for icon, label and info text.
However, it has the region, if icon, label and info text are not set.
I modified theme and added edje signals.

1. add edje signal for label and info text state
2. remove text size for label and info text default state
   -> set it on "visible" state
3. add base image state for info text only

git-svn-id: https://svn.enlightenment.org/svn/e/trunk/elementary@57244 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33