[PATCH] Beautify line-ends handling yet more.

Hello Dave,

Attached are two more patches, mostly cosmetic:

*  Make a better guess of default line-end type based on platform type.
*  Get rid of #ifdef -- let wxTextBuffer::Translate do all the work.

Sending as attachments, let me know if inserting inline is preferred.

Tested on windows only, but I think should not break other platforms.


Thank you,
Nikolai