Several changes: Parameter-changes to several nodes, stubs added, verification of...

Several changes: Parameter-changes to several nodes, stubs added, verification of remote domain to add_remote

Added support for ?user=foo@bar.bz as supplement to ?username=foo&domain=bar to:
 user/get
 user/add_local
 user/add_remote
 user/remove
 user/change_pw
 user/update

Added support for ?username=foo&domain=bar as supplement to ?user=foo@bar.bz to:
 phone/get

Added support for ?alias=foo@bar.bz as supplement to ?alias_username=foo&alias_domain=bar to:
 alias/add
 alias/remove

Added verification that user/add_remote is not done for local domains

Added stub code for:
 user/check_pw
 user/update
 alias/list
 alias/list?destination[&e164]

Removed alias/user, will implement this as alias/list?destination=

Added vim swap-files to .gitignore