Update fetch.go to handle unmanaged package retrieval and metadata.go to handle single package upload.
Fetch, query and import additions

fetch.go - updated usage to indicate package access
logins.go - change message from "no accounts" to "no logins"
partner.go - added soapExecuteCore for core SOAP api namespace
accomodation.
query.go - added support for output format specification
sobject.go - added import function to import new data
Merge branch 'master' of https://github.com/devangel/force into devangel-master

Conflicts:
	sobject.go
Merge branch 'master' of https://github.com/devangel/force into devangel-master