- Add a log entry for repo verb handling and make the container usage calculation take it into account

- Move all the repo push/pull/verb logging into a central track_and_log method
- Readd images accidentally deleted in the last CL
- Make the uncompressed size migration script better handle exceptions

data/migrations/migration.sh

@@ -5,8 +5,8 @@ up_mysql() {
   docker run --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=password -d mysql
 
   # Sleep for 5s to get MySQL get started.
-  echo 'Sleeping for 5...'
-  sleep 5
+  echo 'Sleeping for 10...'
+  sleep 10
 
   # Add the database to mysql.
   docker run --rm --link mysql:mysql mysql sh -c 'echo "create database genschema" | mysql -h"$MYSQL_PORT_3306_TCP_ADDR" -P"$MYSQL_PORT_3306_TCP_PORT" -uroot -ppassword'