renamed ISBN into the "Code"
removed AddBookHistory.cshtml, now edit book has only one partial view - BookHistory.cshtml
Merge branch 'artem'
Merge branch 'master' of github.com:fomaa/Calendar

Conflicts:
	Bs.Calendar.Mvc/Bs.Calendar.Mvc.csproj
fixed errors from someone commit, removed SimpleCryptoProvider from DiMvc