Import and typo fixes

openlp/core/ui/mainwindow.py

@@ -671,7 +671,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
 
     def serviceChanged(self, reset=False, serviceName=None):
         """
-        Hook to change the main window title when the service chmainwindow.pyanges
+        Hook to change the main window title when the service changes
 
         ``reset``
             Shows if the service has been cleared or saved

openlp/plugins/alerts/forms/alertstab.py

@@ -26,7 +26,6 @@
 from PyQt4 import QtCore, QtGui
 
 from openlp.core.lib import SettingsTab, str_to_bool
-from openlp.plugins.alerts.lib.models import AlertItem
 
 class AlertsTab(SettingsTab):
     """

openlp/plugins/songs/lib/sofimport.py

@@ -29,22 +29,19 @@
 # http://www.oooforum.org/forum/viewtopic.phtml?t=14409
 # http://wiki.services.openoffice.org/wiki/Python
 
-import re
 import os
-import time
-from PyQt4 import QtCore
+import re
+
 from songimport import SongImport
 from oooimport import OooImport
 
 if os.name == u'nt':
-    from win32com.client import Dispatch
     BOLD = 150.0
     ITALIC = 2
     PAGE_BEFORE = 4
     PAGE_AFTER = 5
     PAGE_BOTH = 6
 else:
-    import uno
     from com.sun.star.awt.FontWeight import BOLD
     from com.sun.star.awt.FontSlant import ITALIC
     from com.sun.star.style.BreakType import PAGE_BEFORE, PAGE_AFTER, PAGE_BOTH

openlp/plugins/songs/lib/songimport.py

@@ -24,7 +24,9 @@
 ###############################################################################
 
 import string
-from PyQt4 import QtGui, QtCore
+
+from PyQt4 import QtGui
+
 from openlp.core.lib import SongXMLBuilder
 from openlp.plugins.songs.lib.models import Song, Author, Topic, Book