- Fixing code formatting errors with astyle tool.
- Replaced use of TOOLCHAIN_xxx macros with compiler emitted macros.
- Added const to BlockDevice::get_xxx_size() member functions.
- Added documentation for FAT filesystem thread support.
- Added documentation for fat_filesystem_set_errno().
- Added documentation clarifying the reasons for errno/stat symbol definitions in retarget.h.
- Removed FAT filesystem from mbed 2 testing.
- Fixed FATMisc.h Copyright (c) 2016 year to 2017 as its a new file.
- Removed #ifndef NDEBUG from HeapBlockDevice.cpp.
- Removed unnecessary todo comment in retarget.cpp.