CMake fixes on Microsoft Windows

Signed-off-by: Ryan Pendleton <me@ryanp.me>

The pthread library have being added to Windows build. Which
causes linking problems on Visual Studio.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>

Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>

WIN32 is true when the target system is Microsoft Windows, 32 and
64 bits.

UNIX is true when the target system is Unix or Unix-like (i.e. Apple,
BSD and CYGWIN).
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>

Libraries need LIBRARY destination (for shared libraries), and
ARCHIVE for static libraries. Whereas executables need only
RUNTIME destination.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>

Bug: 486548

Bug: 472250

Bug: 479376

Bug: 480363

Automatic reconnect and offline buffering

Conflicts:
	src/Socket.c

Bug: 484496

Build cmake fix

Fix samples

According to ISO/IEC 9899:2011, section 7.22.4.4 (The exit function),
"the constant EXIT_FAILURE is the implementation independent way to
issue failures to exit(3)." Whereas EXIT_SUCCESS is the standard way
to return success. Favor this platform independent constants than the
literal numbers.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>