Say that IUPAC wildcards are supported in help text
ideas
cutpath() function for tests
move write_info to cut()
moving wildcard file handling to separate method
--info-file vs. --times
Introduce options.action (can be None|trim|mask)
Make structure a bit clearer
test demultiplexing
Implement support for demultiplexing.

To use this, include the string "{name}" in the name of the output
file. It is then interpreted as a template and a trimmed read is written
to a file in which {name} is replaced with the name of the adapter
that was found in the read.

Only single-end reads are supported right now.

Also includes some refactoring of too short/long filtering.
changelog