Required refactorings to be able to reload Monticello to SqueakCore:
PackageInfo and Network package cannot have preambule. Because preambule definition in .st files is dependent on PackageInfo
MailComposition class>>initialize - MailSender dependency must be removed.
HTTPSocket class >> initialize - ExternalSettings dependency must be removed.
ServerDirectory class >> initialize - ExternalSettings dependency must be removed.
UUIDGenerator class >> initialize - bad startup list placement - Smalltalk addToStartUpList: self
PackageList class >> initialize - TheWorldMenu dependency must be removed.
System category "Monticello-UI" must be in own package
Monticello extension methods to classes in System-FilePackage category must be removed
MCVersionReader class >> initialize - FileList dependencies must be removed.
MCRepository class >> initialize - ExternalSettings dependency must be removed.