avoid sse2 checks for x86_64
Merge pull request #976 from MartinNowak/sse2X64

avoid sse2 checks for x86_64
Remove typedef handling
fix nothrow issues

- revealed by enabling nothrow checks in functions
  with inline asm
Merge pull request #978 from 9rnsr/remove_typedef

Remove typedef handling
Merge pull request #974 from MartinNowak/nothrowIssues

fix nothrow issues
Added missing baud rate 57200
Merge pull request #980 from o3o/master

Added missing baud rate 57200