Merged revisions 1540607 via svnmerge from 
https://svn.apache.org/repos/asf/cxf/trunk

........
  r1540607 | ffang | 2013-11-11 12:20:27 +0800 (一, 11 11 2013) | 1 line
  
  [CXF-5379]mark swagger dependency as optional|use relative context path|remove potential concurrent thread issue
........


git-svn-id: https://svn.apache.org/repos/asf/cxf/branches/2.7.x-fixes@1540611 13f79535-47bb-0310-9956-ffa450edef68