[Windows] More tidyup and robustness for metro app support - debug cleanup and serialization of input (not quite finished)
[windows] Refactor serialized input code when used with key event thread model
[windows] Add consistent precompiled headers for other projects
[windows] Merge console window test into metro support
[Windows] Tidy up work and identify additional TODOs for metro-style app support
[Windows] Ensure error case falls through to default hook processing for console windows
[Windows] Refactor shared memory into memory mapped file so we can cross 32-64 bit boundary
[Windows] Tweaks to C++ security calls and parameters
[Windows] Start refactor of SerialKeyEvent* classes
[Windows] Rename to SerialKeyEventServer (refactoring)
[Windows] Complete refactoring of SerialKeyEventClient class
[Windows] Further encapsulation and cleanup with 'interfaces' to reduce header pollution
[Windows] Complete serialization fix with move of modifier state management from client thread to server thread to guarantee consistency
[Windows] Replace atom-based keyboard switching with memory mapped file indexed to avoid security constraints
[Windows] Fixup Left Alt+Shift interaction with serializer
[Windows] Use Windows 8.1 SDK for test
