Account names with accents and account number cause crashes

[hsoft]

@@@
Application Identifier: com.hardcoded_software.moneyguru
Application Version: 1.7.7

Traceback (most recent call last):
File "/Applications/moneyGuru.app/Contents/Resources/mg_cocoa.plugin/Contents/Resources/mg_cocoa.py", line 363, in setValue_forColumn_row_
File "core/gui/table.pyc", line 193, in fset
File "core/gui/table.pyc", line 70, in _autofill
File "core/gui/entry_table.pyc", line 296, in _get_autofill_rows
File "core/gui/entry_table.pyc", line 273, in init
File "core/gui/entry_table.pyc", line 317, in load
File "core/gui/entry_table.pyc", line 317, in
File "core/model/account.pyc", line 173, in combined_display
UnicodeEncodeError: 'ascii' codec can't encode character u'\xf6' in position 5: ordinal not in range(128)
@@@

This is reproducible by adding accent to an account, setting the Account number field and then going to the Transaction view in a way that a transaction affecting this account is present.

[hsoft]

(from [7d11ed06a154]) [#138 state:fixed] Fixed crash with account names with accented letters combined with a non-empty account number field.
http://bitbucket.org/hsoft/moneyguru/changeset/7d11ed06a154/

[hsoft]

(from [77618b2a1dae]) [#138 state:fixed] Fixed crash with account names with accented letters combined with a non-empty account number field.
(transplanted from 7d11ed06a154210918886ca89f18e663eb206b75)
http://bitbucket.org/hsoft/moneyguru/changeset/77618b2a1dae/