+ modify command-line parameters for "convert" used in picsmap to work
with ImageMagick 6.8 and newer.
+ fix build-problem with tack and ABI-5 (Debian #868328).
+ repair termcap-format from tic/infocmp broken in 20170701 fixes
(Debian #868266).
+ reformat terminfo.src with 20170513 updates.
+ improve test-packages to address lintian warnings.