abrt 1.0.0 detected a crash.

How to reproduce
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1. Click the 'Exclude' tab
2. Click the 'Add' button (not 'Add file' or 'Add folder)
3. Attempt to add a pattern to exclude list. e.g.: "*.Trash-*" or "*.bak"
4. Click Ok

Comment: crashes when adding a pattern to the exclude list.

backtrace
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Summary: TBb43f9840 settingsdialog.py:418:on_btn_exclude_add_clicked:TypeError: add_exclude_() takes exactly 2 arguments (1 given)

Traceback (most recent call last):
  File "/usr/share/backintime/kde4/settingsdialog.py", line 418, in on_btn_exclude_add_clicked
    self.add_exclude_(  )
TypeError: add_exclude_() takes exactly 2 arguments (1 given)

Local variables in innermost frame:
pattern: *.Trash-*
ret_val: (PyQt4.QtCore.QString(u'*.Trash-*'), True)
self: <settingsdialog.SettingsDialog object at 0x2bde518>

cmdline: python /usr/share/backintime/kde4/app.py 
component: backintime
executable: /usr/share/backintime/kde4/app.py
kernel: 2.6.31.9-174.fc12.x86_64
package: backintime-kde-0.9.26-3.fc12
uuid: b43f9840