Merge pull request #312 from czcorpus/validation_fix

Fix - the function returns before individual files' conf. valid. is run

Merge pull request #311 from czcorpus/kwords_time_fix

Fix setting the 'time' property

Merge pull request #310 from czcorpus/fix_kwords_dt_shift

For Kwords, fix datetime shift starting from today

Merge pull request #309 from czcorpus/tzshift-only-via-lua

Tzshift only via lua

Merge pull request #306 from czcorpus/health_checker

Implement a simple log archiving health check

Merge pull request #305 from czcorpus/treq_api_fix

Fix treq api output rec - isQuery must be true

Update go version

Merge pull request #303 from czcorpus/wag-logging-fix

Fix - in WaG, the time entry name has changed

Merge pull request #298 from czcorpus/docupd_filter

Add two new possible attributes to update filters

Merge pull request #297 from czcorpus/korpus_db_upd

Upgrade test condition for "isQuery"