Adding first work on resources monitor
[slapos.collect] Refactor and Collect information from Computer and System

Major changes
  Rename pymonitor, add dependency and simplify
  Save all information using sqllite
  Record information from all processes individually
  Implement Snapshot for Computer and Systems information
  General Clean up
[slapos.grid] Place instance logs on instance side.
[slapos.cli.register] Update comment.
[slapos.core] Remove cli_legacy
Drop openvpn-needed legacy
Use local template instead download a new one.
[slapos.collect] Include tests for slapos.collect

  Initiall tests for Snapshot and Entity
[slapos.collect] Include test for Database API
slapos.cli: don't log exceptions happened during loggin configuration

because it would go nowhere. just use stderr as usual
[slapos.collect] Minor cleanups and cosmetic changes.
[slapos.collect] Introduce getTableList on database
[slapos.collect] Include tests for CSV Reports
Merge branch 'collect'
[slapos.core] Increase version to 1.1.0

  This commit mark the release preparation.
cli: added missing O_TRUNC to os.open
[slapos.collect] Use set for list comparation
[slapos.collect] Implement garbage collection for the sqlite

  Remove older registers, already reported (or exported to csv)
  (older them 3 days)
Remove missing print
[slapos.core] Include headers and pyflake files