1.2.1
lib: fix coverity warnings
lib: sort backup by creation time
lib: allow logical operators in templates
lib: fix usage of umask
lib: add file_mktmp_copy
backup: do not unlink dangerous missing files
lib: refuse to activate profile if unsupported feature was selected
util: add string_array_copy() to create copy of an array
lib: fix resource leak on error
lib: ensure that preambule timestamp is the same for all generated files
lib: rename textfile_copy to file_copy
lib: put directory listing into its own utility module