Construct Animate r319.2

Notes

In the r319 release we updated a lot of our code for dealing with .zip files, which is also used for .c3p files. However the build system accidentally broke some of the new zip code, which ended up causing saved projects to be empty files. This is a serious problem so we are releasing an update to fix it as soon as possible.

Please note if you saved your project with r319 in the few hours since it's been out, the file may now be empty. You may need to restore a backup. We apologise for any inconvenience caused by this. Please remember that in beta releases unexpected issues like this can sometimes crop up!

In case you missed it see the r319 release notes here.