Pull up the following build-related revisions from trunk: 1627687, 1627690, 1627959, 1628066, 1628106, 1628168, 1628188, 1628699, 1628798, 1628808, 1628845, 1628905, 1629122, 1629374, 1629541.  This basically brings dev_1x into compliance with all the build-related changes on trunk as of this date.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/dev_1x@1631727 13f79535-47bb-0310-9956-ffa450edef68