Changed ND2 metadata string handling to work properly with empty strings
cpp: bioformats: Add escapeXML and sanitizeXML to XMLtools
cpp: xerces: Add writeDocument methods
cpp: bioformats: Replace C++11 pop_back for std::string
cpp: xerces: Work around lack of path addition in older Boost.Filesystem
cpp: xerces: Generalise document writing to all nodes
Add support for multiple copyright forms
Add update_copyright as ant target
Improve log message
Improve sed command
Redirect output of sed --version to /dev/null
Merge pull request #1461 from csachs/nd2-string-read-fix

Changed ND2 metadata string handling to work properly with empty strings
Merge pull request #1478 from rleigh-dundee/cpp-xmltools

C++: Add helpers for XML serialisation
Merge pull request #1483 from sbesson/ant_updatecopyright

Update copyright: add support for unicode
Use proper Sphinx markup in Cell Profiler users page
Merge pull request #1491 from sbesson/cellprofiler_markup

Use proper Sphinx markup in Cell Profiler users page