- pgcenter rewritten on Go from scratch
- pgcenter functionality divided into sub-commands (git/perf-style)
- added new functionality: record/report statistics (worked as additional sub-commands)
- a lot of hotkeys are changed in `top` sub-command (see builtin help)
- removed tabs support
- removed pgcenterrc support
Minor changes:
- show activity statistics by default
- activity shows background processes
- hide/show idle activity (hidden by default)
- show recovery status in postgres summary
- tables and tables IO stats merged into one single view
- filtering supports regexps now
