add connection serial number where it was missing.
Format and add comments.
Handle the case of trying to insert a conflicting permission order for a document
move dbconnection object out of base class and create it for each db access so it can be released
Use OR to add permissions, not AND
Change access section in getaccesscontrol and getdocumentinfo apis to be more eml 2.1.0 compliant. Add a block access option to setaccess api.
change AccessControlForSingleFile to only be instantiated for one file. move ACL methods to AccessControlForSingleFile. Change format of access sections returned to EML 2.1.0.
Create access dao and centralized db access classes. Update create access code to combine access records for principal/doc/accesstype when multiple exist.
Move access control source to it's own directory.