Fetch and store all required assets

[jgaehring]

Right now, the Tasks module is not getting all the assets it needs to perform basic functionality, when running it against a test server with a large database of thousands of assets.

This is dependent on farmOS/farmOS.js#42.

[jgaehring]

It may also be good to think of a better way of limiting requests from the Tasks module itself, so every time logs are synced, all assets don't have to be synced too.