#694 Use 'difference' instead of 'diff'

[Kimmo Varis]

I think we should be consistent on using 'difference'
everywhere.

'Diff' is visible atleast in:
- toolbar tooltips
- 'Diff pane' in View-menu (menutext and statusbar text)
- 'Highlight line diff' in Edit-menu

[Kimmo Varis]

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user_id=631874

> - 'Highlight line diff' in Edit-menu
This is fixed by other patch in CVS trunk.

[Christian List]

Looking at the English.pot file in trunk we still have 10 places left where we use diff instead of difference.

Line 837: msgid "Diff &Pane"
Line 1051: msgid "G&oto Diff"
Line 1066: msgid "Moved Block for &Current Diff"
Line 1561: msgid "Selected Word Diff:"
Line 4069: msgid "Ignored Diff."
Line 4445: msgid "Diff Pane"
Line 4905: msgid "Toggle Diff Pane"
Line 5185: msgid "Display moved blocks only from current diff"
Line 5190: msgid "Go to diff under cursor"
Line 5195: msgid "G&oto Diff %1 of %2"