Xpra

* remove more legacy code, cleanups, etc
* switch to GStreamer 1.x on most platforms
* mostly gapless audio playback
* audio-video synchronization
* zero copy memoryview buffers (Python 2.7 and later), safer read-only buffers
* improved vp9 support
* handling of very high client resolutions (8k and above)
* more reliable window positioning and geometry
* add more sanity checks to codecs and csc modules
* network and protocol improvements: safety checks, threading
* encryption improvements: support TCP only encryption, `PKCS7` padding
* improved printer forwarding
* improved DPI and anti-alias synchronization and handling (incomplete)
* better multi-monitor support
* support for screen capture tools (disabled by default)
* automatic desktop scaling to save bandwidth and CPU (upscale on client)
* support remote SSH start without specifying a display
* support multiple socket directories
* lz4 faster modes with automatic speed tuning
* server file upload from system tray
* new subcommand: "xpra showconfig"
* option to select a specific clipboard to synchronize with (MS Windows only)
* faster OpenGL screen updates: group screen updates
* dbus server for easier runtime control
* replace calls to setxkbmap with native X11 API
* XShm for override-redirect windows and shadow servers
* faster X11 shadow servers
* XShape forwarding for X11 clients
* improved logging and debugging tools, fault injection
* more robust error handling and recovery from client errors
* NVENC support for MS Windows shadow servers

* fix missing files from build clean target
* fix unnecessary auto-refresh events
* fix x265 encoder
* fix libvpx bitrate calculations, reduce logging spam
* fix validation of mmap security token
* fix handling of file transfers before authentication (disallowed)
* fix handling of requests to open files (honour command line / config flag)
* fix MS Windows multiple monitor bug (when primary monitor is re-added)
* fix video encoding automatic selection for encoders that accept RGB directly
* fix the session info sound graphs when sound stops
* fix RPM packaging of the cups backend
* fix the speed and quality values reported to the clients for x264 encoder
* fix OSX El Capitan sound compatibility issue
* fix codec import error handler
* fix compatibility with Python Pillow 3.0.0 (logging issue)
* fix support for Ubuntu Vivid (Xorg still unusable)
* fix batch delay heuristics during resizing and queue overload
* fix "always batch" mode
* fix missing network-send-speed accounting
* fix error in override redirect window geometry handling
* fix invalid error logging call
* fix error in XSettings handling causing connection failures
* fix race condition causing corrupted video streams
* fix unnecessary double refresh on client decoding error
* fix encoding bug triggered when dependencies are missing
* fix window size hints handling
* support Xorg location and arguments required by Arch Linux
* improved lz4 version detection workaround code
* support Xft/DPI
* safer OSX power event handling code
* workaround clients supplying a password when none is required
* log OpenGL driver information
* clamp desktop size to the maximum screen size
* avoid potential errors with bytes-per-pixel confusion with rgb modes
* disable workspace support by default (compatibility issues with some WM)
* always watch for property changes, even without workspace support
* workaround clients supplying a password when none is required
* export shadow servers flag
* run the window opengl cleanup code

* fix inband info requests
* fix monitor hotplugging workaround code
* fix OSX menus which should not be shown
* fix cursor lookup by name in local theme
* fix max-size support on MS Windows
* fix max-size handling for windows without any constraints (all platforms)
* fix repaint when using the magic key to toggle window borders
* fix iconification handling
* fix connection error when there are XSettings already present
* fix parsing of invalid display structures
* fix video region detection after resize
* fix vpx quality setting
* fix cursor crashes on Ubuntu
* don't show opengl toggle menu if opengl is not supported
* add new common X11 modes (4k, 5k, etc)
* add missing logging category for x265 (fixes warnings on start)

* fix missing auth argument with Xdummy
* fix oversize print jobs causing disconnections
* fix server-side copy of the client's desktop dimensions
* fix X11 client errors when window managers clear the window state
* fix spurious warnings if X11 desktop properties are not present
* fix server failing to report sound failures (dangling process)
* fix paint errors with cairo backing
* fix window positioning issues when monitors are added (osx and win32)

* fix encryption not enabled when pycrypto is missing: error out
* fix encryption information leak, free network packets after use
* fix authentication plugins
* fix latency with many sound codecs: vorbis, flac, opus, speex
* fix the desktop naming code (worked by accident)
* fix OpenGL errors with windows too big for the driver
* fix some subcommands when encryption is enabled
* fix spurious errors on closed connections
* fix incorrect colours using CSC Cython fallback module
* fix size limits on Cython fallback module
* fix some invalid Xorg dummy modelines
* fix aspect ratio not honoured and associated warnings
* fix printing file compression
* fix errors in packet layer accounting
* fix regression in python-lz4 version guessing code
* fix RPM packaging: prefer our private libraries to the system ones
* fix pactl output parsing
* fix error on Posix desktop environments without virtual desktops
* fix unlikely connection closing errors
* fix value overflows when unpremultiplying alpha channel
* ship a default configuration file on OSX
* try not to downscale windows from shadow servers
* add vpx-xpra to the RPM dependency list so we get VPX 1.9 support
* make it possible to generate the EXE installer without running it
* allow the user to remove some atoms from _NET_SUPPORTED
* show maximum OpenGL texture size in diagnostics and bug reports
* minor python3 fixes

* fix delta compression errors
* fix VP8 and VP9 performance when speed command line option is used
* fix application deadlocks on exit
* fix NVENC on cards with over 4GB of RAM
* fix csc Cython red and blue colours swapped on little endian systems
* fix byteswapping fallback code
* fix cleanup error on MS Windows, preventing process termination
* fix pulseaudio device count reported
* fix timer warnings in GTK2 notifier (mostly used on OSX)
* fix sound communication errors not causing subprocess termination
* fix Xorg path detection for Fedora 22 onwards
* fix invalid list of output colorspaces with x264
* fix bug report tool window, so it can be used more than once
* fix bug report tool log file error with Vista onwards
* fix bug report screenshots on MS Windows with multiple screens
* fix shadow mode on MS Windows with multiple screens
* fix OpenCL csc module with Python3
* fix OpenCL platform selection override
* fix Python3 Pillow encoding level (must be an integer)
* fix capture of subprocesses return code
* fix Xvfb dependencies for Ubuntu
* fix ldconfig warning on Debian and Ubuntu
* fix warnings with X11 desktop environments without virtual desktops
* fix use of deprecated ffmpeg enum names
* fix client error if built without webp support
* include the CUDA pre-compiled kernels on Debian / Ubuntu (NVENC)
* packaging fixes for printing on Debian / Ubuntu
* updated dependency list for Debian and Ubuntu distros
* don't require a nonsensical display name on OSX and win32
* safer x264 API initialization call
* safer OpenGL platform checks (prevents crashes with wine)
* safer NVENC API call
* safer lz4 version checking code
* workaround invalid "help" options in config files
* ensure any client decoding errors cause a window refresh
* MS Windows build environment cleanup
* Fedora: update PyOpenGL package dependency