fix bugs
Merge branch 'master' of https://github.com/billycat/BackgroundDataCheck

Conflicts:
	BackgroundDataCheck/Indoor/Indoor_SolutionCheck.cs
Merge branch 'master' of https://github.com/billycat/BackgroundDataCheck
Merge branch 'master' of https://github.com/billycat/BackgroundDataCheck
Merge branch 'master' of https://github.com/billycat/BackgroundDataCheck
fix bugs