GitLab

Make imports and args.overwrite_cache match run_glue.py

It takes considerate amount of time (~10 min) to parse the examples to features, it is good to have a progress-bar to track this

see also https://github.com/salesforce/ctrl/pull/50

gradient norm clipping should be done right before calling the optimiser - fixing run_glue and run_ner as well

Add a speed estimate log (time per example)
for evaluation to examples/run_squad.py