Add hot reload in WSGI

[jnogol]

Prerequisites

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  • Checked that there is not already provided the described functionality

Description

As in #104 #132, add the ability of reload Prom2teams' configuration without restarting it.

Steps to Reproduce

1. [First Step]
2. [Second Step]
3. [and so on...]

Expected behavior: [What you expect to happen]

Actual behavior: [What actually happens]

Reproduces how often: [What percentage of the time does it reproduce?]

Versions

The version/s you notice the behavior.

Additional Information

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.