initial structure
implement GsUpgrader
use 3.2.2...
update travis tests for updater command
`upgrader` command implementation
fixup .travis.yml ... using wrong image
remove `upgrader` command ... not practical
adjust GsUpgrader to work on older versions of Metacello
fix the uses of the `list` command
if GLASS1 or Metacello baselines are not locked, then force the load from the proper github master repository
fix typo
straighten up logging for GsUpgrader
logging for the testGsUpgrader.sh script
final touch in .travis.yml
simplify the test scripts
if MetacelloPreview is already loaded then no need to upgrade to 1.0-beta.9.3
move upgrades to gsUpdater