Replace dots `...` with ellipsis `…` in menu item titles

According to the Apple's Human Interface Guidelines, the symbol character in menu items, which represent dialog following after the execution,  is not three dots  `...` but an ellipsis glyph `…`.

# Strangely only in the Japanese localization on the recent OS X, Apple uses in their applications three dots instead of ellipsis glyphs. So, I leaved the Japanese nib as it is.

ref: [OS X Human Interface Guidelines -Using the Ellipsis Character](https://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/AppleHIGuidelines/TextStyle/TextStyle.html#//apple_ref/doc/uid/TP30000365-TPXREF126)