v3.1
maint: remove "MAINTAINERCLEANFILES = Makefile.in" from Makefile.am's
tests: reenable a "bsd" partition table test
build: mark functions with "const" or "pure" attribute, per gcc warnings
fix >512-byte sector label/disk-test failure
tests: clean up partition-table-testing code
libparted: add test for /dev/mapper symlink issue
maint: update all copyright year number ranges
libparted: ignore zero-length devices