taskwarrior: add dependencies

add libgnutls and libreadline dependencies
fixes build error

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>
ksymoops: try to fix compile with binutils 2.24 and gcc 4.8

has build when linking
complain about xstat64, lxstat64, isoc99_sscanf, strdup

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>