Kraken 0.687 release and previous ones

[Michal Nowikowski]

Hello,

I'm pleased to announce the Kraken 0.687 release and some previous ones that were not published here yet.

The installation instruction is available in Quick Start guide on https://kraken.ci/docs/quick-start.

Here is  the list changes that were released:

Kraken 0.687

The installation instruction is available in [Quick Start](https://kraken.ci/docs/quick-start) guide.

Features & improvements
- updated golang base image to 1.16
- improved handling timeout in agent
- added retry on timeout when connecting from tool to jobber

Fixes:
- fixed resetting schema repo refresh job id

Kraken 0.647

Features & improvements:
- added background steps
- [#113] added support for Rocky Linux
- replaced Celery with RQ for background tasks
- added more details about RQ jobs on the diagnostics page
- added changing name of branch in a repo
- upgraded Angular and PrimeNG to 12
- when run is being started then stage schema is refreshed from repo
- added button for  checking email and AWS settings
- converted timestamps columns to be with timezone in Postgresql schema
- converted all char(n) columns in db to text
- added doing db backup during deployment

Fixes:
- fixed deleting dangling agents with no AWS instance
- added db rollback in watchdog in case of exception
- improved checking agents vm to destroy
- pytest tool: added check if collecting tests failed
- fixed counting available agents
- added detecting jobs with no agent and spawning them
- improved creating system records
- improved checking args to agent
- improved pulling git repo in git tool

Kraken 0.566

The installation instruction is available in [Quick Start](https://kraken.ci/docs/quick-start) guide.

Features & improvements:
- improved performance of loading list of flows
- improved loading project data

Fixes:
- [#112] fixed changing user password
- fixed db migration

Kraken 0.557

More details on Kraken website: https://kraken.ci/blog/kraken-release-0-557

Features & improvements:
- #105 added browsing Kraken logs in diagnostics page
- added errors number indicator in the top menu bar
- added integration with AWS EC2 - spawning VMs for jobs (beta/preview)
- added loading status with a spinner to submit, refresh and other buttons
- added interpolating variables in system and agents_group names in a workflow schema
- added adding a kraken user to docker group and configuring sudo in agent installer
- kraken workflow: switched to AWS agents in build and static analysis jobs
- added codebeat badge to the readme

Fixes:
- fixed preparing repo changes data
- fixed counting agents in agents group
- fixed updating schema_from_repo_enabled
- fixed colors of top menu items