BISERVER-8444 - moved metadata properties to general file properties tab; added owner label; applied some formatting

BISERVER-8512 - Moved REST GET calls to FilePropertiesDialog and passing result to sub panels to consolidate since General and Sharing tabs both need results of get ACL and Metadata. Also added owner field to General tab

BISERVER-8512 - Modified PermissionsPanel to receive get ACL response from FilePropertiesDialog

BISERVER-8418 StaleItemStateException occurs when saving sharing properties - Instead of firing off REST calls from each panel, pass request objects to FilePropertiesDialog parent which will chain the requests via callbacks to execute sequentially

BISERVER-8418 - Added some comments to interface
Merge pull request #108 from pminutillo/master

BISERVER-8444 - moved metadata to general tab on file properties dialog