Changed C to Qt file handling. VC warns because fopen may be unsafe.
Fixed VC "'*/' found outside of comment" warning.
Fixed VC++ 'M_PI' : undeclared identifier error.
Fix MSVC++ compile error caused by missing round() in math.h
Fixed MSVC++ compile error due to sqrt() usage.
Fixed CMake files for MSVC++ linker.
Updated NSIS installer.
Updated NSIS uninstall section.
Fixed warning regarding virtual function overrides. Using C++ standard.
See http://msdn.microsoft.com/en-us/library/bb384874(v=vs.90).aspx
Fixed warning C4018 <,> signed/unsigned mismatch
Fixed deletion of startmenu folder on uninstall + code indent
Improved file handling from commit e33debcb.
Defined a common prefix for the Qt directory
Merge remote-tracking branch 'origin/master' into win32

Conflicts:
	cockatrice/CMakeLists.txt
	oracle/CMakeLists.txt
Fixed bug in filtertree.cpp
Restored MSVC linkflags after cmake update.
Added MSVC compiler flags to cmake file.
Merge branch 'win32' of https://github.com/VanNostrand/Cockatrice into win32
Revert "Merge pull request #89 from dylan/master"

This reverts commit 552a8e0c230d7512092007d3f7a59389d8749ad7, reversing
changes made to d0f3ae6c80f61a7dadf650af9597c5a529ebf45e.
Merge pull request #61 from VanNostrand/win32

Windows MSVC support