Description of problem:
I accidentally added some tags I wish to delete. If I open Edit->Preferences, click the "Categories and Tags" tab, and delete the tags, hamster crashes when I click the "Close" button.

Version-Release number of selected component:
hamster-time-tracker-1.03.3-6.fc20

Additional info:
reporter:       libreport-2.1.12
cmdline:        python /usr/bin/hamster
dso_list:       dbus-python-1.2.0-1.fc20.x86_64
executable:     /usr/bin/hamster
kernel:         3.12.10-300.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            2000

Truncated backtrace:
connection.py:651:call_blocking:DBusException: org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/dbus/service.py", line 707, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/bin/hamster-service", line 294, in SetTagsAutocomplete
    self.update_autocomplete_tags(tags)
AttributeError: 'Storage' object has no attribute 'update_autocomplete_tags'


Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/hamster/preferences.py", line 339, in on_autocomplete_tags_view_focus_out_event
    runtime.storage.update_autocomplete_tags(updated_tags)
  File "/usr/lib/python2.7/site-packages/hamster/client.py", line 160, in update_autocomplete_tags
    self.conn.SetTagsAutocomplete(tags)
  File "/usr/lib/python2.7/site-packages/dbus/proxies.py", line 145, in __call__
    **keywords)
  File "/usr/lib/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Python.AttributeError: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/dbus/service.py", line 707, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/bin/hamster-service", line 294, in SetTagsAutocomplete
    self.update_autocomplete_tags(tags)
AttributeError: 'Storage' object has no attribute 'update_autocomplete_tags'


Local variables in innermost frame:
byte_arrays: False
self: <dbus._dbus.SessionBus (session) at 0x281d590>
args: (u'',)
object_path: '/org/gnome/Hamster'
signature: u's'
bus_name: dbus.UTF8String(':1.79')
get_args_opts: {'byte_arrays': False, 'utf8_strings': False}
timeout: -1.0
kwargs: {}
dbus_interface: 'org.gnome.Hamster'
message: <dbus.lowlevel.MethodCallMessage path: /org/gnome/Hamster, iface: org.gnome.Hamster, member: SetTagsAutocomplete dest: :1.79>
method: 'SetTagsAutocomplete'