[FIX] fixed gff io test
[FIX] test_gff_io works again
[FIX] graph I/O works
[FIX] test_index_drawing works
[FIX] test_index_sa_bwtwalk fixed
[FIX] test_index_stree_iterators works
[FIX] fixed test_ucsc
[FIX] fixed test_misc, test_misc_cmdparser