Create a branch to work on CONNECTORS-781.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-781@1541769 13f79535-47bb-0310-9956-ffa450edef68
Install write locks for stuffer threads.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-781@1542510 13f79535-47bb-0310-9956-ffa450edef68
Put in another write lock, and also refactor to make use of java 1.5 constructs.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-781@1542743 13f79535-47bb-0310-9956-ffa450edef68
Some work for CONNECTORS-781.  Install write-locks on code that is intended to be for one thread only, and refactor QueueTracker code to use Java 1.5 syntax, for clarity.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/trunk@1542876 13f79535-47bb-0310-9956-ffa450edef68