v0.4.2
Changelog
ded1c23 Added Conway's Game of Life example. (#14)
4485cba Fix tiny grammatical error in modules.md (#15)
086ce6d Update module mitchellh/hashstructure to v1.1.0 (#20)
6e2471c control Marquee child start/end position (#23)
a334d4a make --watch work with vim (#24)
9c77d1f runtime/gen: Format generated code (#40)
12a220b support animated GIF in Image (#41)