Release v2.0.18 (Support Side Effects by Loads, Table Assignments, and *Apply)

What's Changed

• Support Library Loads and Installations as Potential Side Effects by @EagleoutIce in #944
• Fix $ Access Reconstruction if string constant by @EagleoutIce in #945
• Support data.table := within access operations by @EagleoutIce in #946
• Support passing functions for lapply and friends by @EagleoutIce in #948

Full Changelog: v2.0.17...v2.0.18