Add DUCC_UMASK support

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1594940 13f79535-47bb-0310-9956-ffa450edef68
UIMA-3826 DUCC Web Server (WS) should display Swap(GB):free on Machines page

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1594947 13f79535-47bb-0310-9956-ffa450edef68
UIMA-3826 DUCC Web Server (WS) should display Swap(GB):free on Machines page

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1594948 13f79535-47bb-0310-9956-ffa450edef68