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
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
Update copyright headers

Repository: openmicroscopy/bioformats
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