Update list for A Ruler for Windows

A Ruler for Windows 3.3 changelog from September 27, 2015

corrected 4x magnification on large screens plus other minor improvements

A Ruler for Windows 3.2 changelog from September 5, 2015

improved german translation

A Ruler for Windows 3.1 changelog from May 3, 2015

updated to make program dpi aware (more useful on 4k displays etc.)

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