Update dependency versions

1.4.16

bump jdk version

Make serializable

1.4.15

make serializable, bump version

Add sources to distribution

1.4.13

bump version, distribute sources

1.4.12

bump build

update versions

1.4.11

Minor debugging improvement

1.4.10

improve debugging, bump version to 1.4.10

1.4.9

fix dumb gradle problem, temporarily disable dokka

1.4.8

fix inefficiency in interpolation, bump kotlin version

1.4.7

tidy up, bump version again

1.4.6

Update build.gradle