Log Message:
pkgin: Update to 0.11.0.

## Version 0.11.0 (2018-06-08)

 * Fix build on NetBSD/evbarm.
 * Skip download checks for packages that are being removed, prevents
   erroneous "empty FILE_SIZE" failures.
 * Perform in-place upgrades using `pkg_add -DU` rather than removing
   and reinstalling.  Should be faster and less error-prone.
 * Output formatting improvements.  Installs are now split between
   refresh, upgrade, and install, with package lists formatted to be
   easier to read.