dev feature enabled: unresolved comments block submit

[Anastasia Klimchuk]

Hello everyone,

An announcement to everyone who is doing (or planning to do) any
flashrom development.

Since today, we are enabling the feature in Gerrit which blocks patch
submit until all comments are resolved. You can see it in Gerrit if
you open any patch, in the top-left section, "All-Comments-Resolved"
label.
If all the comments are resolved, the label is marked with a green checkbox.
If there are unresolved comments, the label says "No votes" and submit
is blocked.
Thanks heaps to Patrick for helping to set this up!