Fixes for ATDSUPPORT-358
Plus various other changes that were discovered during investigation:
- lock whole acquire() function
- remove verify() cache
=== daq_tokens ===
Set the default leeway to 5 seconds (Reiner Hauser) Introduce not_before_leeway of 5 seconds (Reiner Hauser) Remove the cache in verify() (Reiner Hauser) Lock the whole acquire() function via mutex (Reiner Hauser) Handle end of line in verify_daq_token (Reiner Hauser) Install the proxy script (Reiner Hauser) Add token_meister_proxy helper script (Reiner Hauser) verify_daq_token: catch exception and print nice error (Reiner Hauser)