Confirmation when closing multiple terminals is bypassed if one of them is maximized

[Felipe Montoya]

Description
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Terminator normally asks for confirmation if there is more than one terminal opened.
However if you maximize one of them and then try to close it, all of them are closed withouth the confirmation prompt.

How to reproduce
---------------------------
1. Open terminator, create a split to keep 2 terminals open
2. Try to close the windows. You should see a confirmation dialog.
3. Select one of the terminals and maximize it (Ctrl + Mayus + X)
4. Try to close the window, it closes without confirmation. A confirmation should appear the same way it was when the terminal was not maximized

Versions
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Terminator 0.98
Ubuntu 14.04.3 LTS

Debug info
----------------
https://gist.github.com/felipemontoya/3f198fa815d6035e125e

[Stephen Boddy (stephen-j-boddy)]

Committed revision 1710.