core: Don't sent persistent key list if deact/react

Client persistent key list should not be sent if deactivation-
reactivation sequence is in progress. See [MS-RDPBCGR] 2.2.1.17
for details.

fixes #1229
winpr: check added if handle is NULL
directfb: print "unmaintained" build warning

directfb client is currently unmaintained
codec: yCbCrToRGB did not get profiled anymore
Merge pull request #1303 from nfedera/fix-2013-06-18-02

codec: yCbCrToRGB did not get profiled anymore
xfreerdp-server: removed binary
Merge pull request #1304 from nfedera/fix-2013-06-18-03

xfreerdp-server: removed binary
libfreerdp-codec/rfx: fix a memory leak.
libfreerdp-common: add some null pointer checks.
fixed incorrect size calculation
server/sample: fix for issue #1312 (mstsc protocol error)
Merge pull request #1313 from nfedera/fix-2013-06-21-01

server/sample: fix for issue #1312 (mstsc protocol error)
sample server: support build on win32
Merge pull request #1314 from nfedera/fix-2013-06-24-01

sample server: support build on win32
libwinpr-synch: fix broken USleep (on WIN32)

Also reduce CPU usage by reducing the max busy-looping time to 1ms
Merge pull request #1317 from nfedera/fix-2013-06-25-01

libwinpr-synch: fix broken USleep (on WIN32)
libfreerdp-utils/pcap: open pcap in binary mode

Use 'b' in fopen's mode string to force binary (untranslated) mode
when reading or writing the pcap file.
This is required on WIN32 and maybe on other non POSIX conforming
systems.

This fixes the mstsc internal error disconnect followed by a crash
of the sample server when latter is used to serve a pcap file on
WIN32.
Merge pull request #1318 from nfedera/fix-2013-06-25-02

libfreerdp-utils/pcap: open pcap in binary mode
Merge pull request #1310 from byteboon/master

incorrect size calculation in gdi_Bitmap_Decompress
client/x11: fixed incorrect size calculation

xf_Bitmap_Decompress used the same calculation like gdi_Bitmap_Decompress
see #1310