+ pellets 新增一个处理当前用户SID的功能类
Merge branch 'master' of https://github.com/zpublic/zpublic into siren_branch

Conflicts:
	src/test_pellets/TestWinUtils.h
	src/test_pellets/test_pellets.vcxproj
	src/test_pellets/test_pellets.vcxproj.filters
Merge pull request #48 from siren186/master

新增处理当前用户SID的功能; 合并冲突