gc_test_maximum.py:
File name is now a command line argument.
Fixed crash on 0/0 for the counters.

src/defs.d:
Commented functions and added "contains!c()" to quickly check if a byte is contained in a size_t.

src/fasta.d:
Fixed -nan% display on 0/0 for the counters.

src/sequencer/algorithm/gzip.d:
GC deadlock: Switched to malloc() for allocating the "leaves" array.

src/sequencer/algorithm/text.d:
Cleaned up and commented.
Added fast skipping of size_t blocks of characters that don't contain line-breaks.

src/sequencer/circularbuffer.d:
Removed obsolete debugging variable.