Add chat window for users
Add js for chat
merge
add messages to db
Merge branch 'ValikBranch' of https://github.com/DzianisPasiukou/ProjectForEpam into VladBranch

Conflicts:
	MvcApp/App_Data/EpamProject.mdf
	MvcApp/App_Data/EpamProject_log.ldf
	MvcApp/Views/Shared/_Layout.cshtml
	MvcApp/Views/Shared/_LoginPartial.cshtml
	MvcApp/bin/MvcApp.dll
	MvcApp/packages.config