5.5.2
Move version info to appropriate ALTO element
Fix function addAvailableLanguages (issue #4416)
Allow for text angle/gradient to be retrieved (#4070)
Modernize code for renderers and remove filename conversion for Windows (#4330)
Replace strcpy and strncpy by new inline helper function
Fix some code comments
[clang-format] Execute clang format on include and src dirs.
Reduce scope of some local variables (reported by Codacy)
Check input for `AppendString` to avoid `strlen(nullptr)`.