* checkpointing
* more updates to keep gh summ pipelines example current
cleanup & update; remove obsolete pipelines
create 'preemptible' version of hosted kfp pipeline
notebook update, readme update
* in notebook, add kernel restart after pip install
minor pipeline cleanup
add archive version of pipeline
* fixed namespace glitch, cleaned up css positioning issue
* initial import of Pipelines Github issue summarization examples & lab
* more linting/cleanup, fix tf version to 1.12
* bit more linting; pin some lib versions
* last? lint fixes
* another attempt to fix linting issues
* ughh
* changed test cluster config info
* update ktext package in a test docker image
* hmm, retrying fix for the ktext package update