-cutLines, -deleteLines and -duplicateLines don't consider multiple selection ranges

[fortinmike]

Those methods operate only on the first selected range ATM. This may not be the expected behaviour when selecting multiple ranges either directly or by using one of XcodeBoost's multi-selection features (such as "Select Method Definitions").

[fortinmike]

Won't fix, as multiple selection ranges isn't a well supported feature in Xcode anyway.