Take care of the documentation (except developers)
Change VMs to servers in docs, fix docs scripts
Implement --type argument for server reboot
Refs: #4338
Fix wrong parameter passing to create_server
Refs: #4339
Fix --more bug in _optional_json commands
Update Changelog for config unittests
Refs: #4058
Complete unittests for kamaki.cli.config
Implement all methods up to reload
Test get/set_cloud/global
Implement tests for _cloud_name, _rescue_old_file
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