start refactoring Protocol/Carrier private classes into public parts
yarp::os::impl::OutputStream -> yarp::os::OutputStream
AuthHMAC needs String (no longer in OutputStream.h)
quick bugfix for missing namespace for OutputStream
Fixed missing GTHREAD library dependency in GUIs CMake files
Fixed newly added FindFreetype.cmake, which didn't find ftheader.h on Windows - patch to be tested and submitted upstream
Merge pull request #44 from elen4/master

bugfixes after build tests on Windows with YARP_USE_GTK2 and CREATE_SHARED_LIBRARY
more pruning of yarp::os::impl::Protocol
yarp::os::impl::InputStream -> yarp::os::InputStream (required porting ssize_t)
missed a ssize_t->YARP_SSIZE_T in public API [thanks Ugo Pattacini]
replaced ssize_t with YARP_SSIZE_T
raw ssize_t usage now needs yarp/os/PlatformSize.h
add missing disableCallback in test, see issue #39
Fixing FindGTK2.cmake for Visual Studio 11 - patch to be checked and submitted upstream
Declare float constants as float

Should fix some warnings on windows
Import fixed FindFreetype.cmake from CMake git repo
Include giomm config dir only if it was found

Should fix experimental build on Debian squeeze where giommconfig.h
file does not exist.
make it clear that libdc1394_bayer.c has external origins
correct path to libdc1394_bayer adapter header file
Update .mailmap file