PR for 3 functions

[tuxlife]

• skip regions thread, if no region configured
• ignore not issued certificates (Error with state validations timeout)
• resend validation mails, if the certificate only for less 4 weeks valid

PLEASE NO SQUASH MERGE

[codecov-io]

Codecov Report

Merging #66 into master will decrease coverage by 0.06%. The diff coverage is 7.14%.

@@            Coverage Diff             @@
##           master      #66      +/-   ##
==========================================
- Coverage   22.44%   22.37%   -0.07%     
==========================================
  Files          24       24              
  Lines        2139     2150      +11     
==========================================
+ Hits          480      481       +1     
- Misses       1659     1669      +10

Impacted Files	Coverage Δ
sevenseconds/config/__init__.py	29.66% <0%> (-0.26%)	:arrow_down:
sevenseconds/config/acm.py	8.69% <10%> (+0.36%)	:arrow_up:

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[coveralls]

Coverage decreased (-0.08%) to 24.349% when pulling 6629006eb1d8d488fa306ed6d0dc2c77b1cd9978 on mkerk into a6f8889ebfaaeb55727ea863ac29aaa3d7755754 on master.

[ideahitme]

👍

[tuxlife]

:+1: