v2.7.5
Add list_head based double linked list
maint: update all copyright year number ranges
Add line number overflow checking
Move error reporting out of make_tempfile()
build: update gnulib submodule to latest
Move path traversal error reporting into main()
Fail when out of memory in set_hunkmax()
Allow absolute symlinks that lead back into the working directory
Add symlink-safe system call replacements
Update list of gnulib modules used
Move all source and header files into src/