Renamed LibFTDIConfig.cmake. Cosmetic changes to CMakeLists.
Add C++ wrapper config vars.
Adapt to new cmake config files path
Prepare third release candidate
MinGW support: Change sleep() to usleep()

Change sleep() to usleep() to make examples build
successful under Windows with MinGW.
Fix usleep unit conversion
Prepare changelog for release
Fix typo in release documentation
Merge branch 'master' of git://developer.intra2net.com/libftdi