- changed mingw host detection to *-mingw instead of *-*-mingw to work with i586-mingw32msvc-gcc

- add replacements.h to log.h to make sure ERROR is undefined on windows


git-svn-id: svn://svn.berlios.de/openocd/trunk@191 b42882b7-edfa-0310-969c-e2dbd0fdcd60