Crash on cyrillic named windows account

[norraxx]

Error occurs on win10 with cyrillic named accounts like Фёдор during the call org.bridj.Platform.isWindows()

java.lang.UnsatisfiedLinkError: org.bridj.Platform.sizeOf_ptrdiff_t()I
    at org.bridj.Platform.sizeOf_ptrdiff_t(Native Method)
    at org.bridj.Platform.<clinit>(Platform.java:232)

Where we found the problem:
https://github.com/FAForever/downlords-faf-client/blob/develop/src/main/java/com/faforever/client/preferences/PreferencesService.java#L68