New minor features and bug fixes

Changes in version 2.1

Released on 2019-01-14.

• Issue 3: Added a new PBULK_LOG setting to point at a location that
  holds all build logs, and made the build command print out details
  about such logs on success and failure.

• Issue 4: Fixed the installable bootstrap kit generated during a build
  to not leak pkg_comp-internal paths.

• Issue 10: Fixed generation of pkg_summary so that it includes all
  packages and not only those that were explicitly given to the auto
  or build commands after a clean rebuild of the sandbox.

• PR 20: Fixed the default Git repository from jsonn's to NetBSD's as
  it has moved upstream.

• Added a new PKG_DEVELOPER setting to enable pkgsrc development
  from within the sandbox.

Portability, speed, and robustness

Changes in version 2.0

Released on 2017-02-17.

This is the first release of the pkg_comp project as a standalone
package. This new release shares no code with previous versions and is
not compatible with them.

The following are the major differences between pkg_comp 2.0 and all
previous releases, which incidentally are the reasons that triggered
this rewrite:

• Support for multiple platforms.
• Use of pbulk to (re)build packages within the sandbox. This results
  in more reliable incremental builds after pkgsrc updates.
• Support for bootstrap, generating binary kits as part of the builds.
• Better scriptability to allow running from cron(8) trivially.