Code review comment for lp:~trb143/openlp/servicing2

Some nitpicks and queries:
8 + #replace the quotes with quotes
9 + line, replace("''", "'")
Do you need a "u" in front of the strings? Also, I find it easier to see what's going on in strings that are pure quote marks to actually escape the quotes (even though it's unnecessary).
Also, should it be line=line.replace(...)?

808 + self.SlidePreview.setFixedSize(QtCore.QSize(250, 210))
Should the slide preview be of fixed size? Does this cause it to be too big on lo-res screen?

873 +class MasterToolbar(QtCore.QObject):
874 + """
875 + Class from which all tollbars should extend
typo - tollbars -> toolbars.

1096 + #check to see file is in route directory
*root* directory?

The timer for the image lists: should the timeout be configurable as part of the OOS (different per service item), rather than in the plugin? Or is the settings tab just for a default?