Log Message:
sayaka: update to 3.3.2.

Upstream changes:

3.3.2 (2018/01/02)
 - support build on pkgsrc-2017Q4 (vala-0.38.1 and later)
 - try to show images only if Content-Type is image/*
 - update to mbedTLS-2.4.2
 - implement --timeout-image option