Merge updates from trunk, up to r1754689.



git-svn-id: https://svn.apache.org/repos/asf/openoffice/branches/gbuild-reintegration@1754701 13f79535-47bb-0310-9956-ffa450edef68
tree: a6c93fc68b8cdb35bf5ed2baa17e5367b797c950
  1. ext_libraries/
  2. ext_sources/
  3. extras/
  4. main/
  5. test/
  6. .gitignore