Change EditFileViewModel and refactor js in AddFile.cshtml
Merge branch 'master' of https://github.com/VadzimBura/GroupProject

Conflicts:
	FileExchange/FileExchange.WebUI/App_Data/FileExchange.mdf
	FileExchange/FileExchange.WebUI/App_Data/FileExchange_log.ldf
	FileExchange/FileExchange.WebUI/Content/FileExchangeStyles.css