v0.15.3 (2020-07-28)

This release contains the following bugfixes:

• Fix handling of relative view paths (#17721)
• Fixes for binary relocation (#17418, #17455)
• Fix redundant printing of error messages in build environment (#17709)

It also adds a support script for Spack tutorials:

• Add a tutorial setup script to share/spack (#17705, #17722)