Have bootstrap command load config file changes during execution (issue #13)

[pbanos]

Description

• Config loading stores the time at which the file is read
• Added utils.ReloadConfig method to reload config, that informs not only on the current config, but if it was updated (and if there was an error)
• Refactor bootstrapping command so that the periodical (default) mode detects changes to config and can change to run-once mode. The reloading also affects to the interval, splay and applyAfterIterations parameters.

Related Issue

Issue #13

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[lttito]

👍

[ptemmer]

ok