Add humanized version for Microsoft Teams category

Update step template ID for Microsoft Teams step template

Fixed image size around

Added support for Let's Encrypt

Deleted test templates.

Fix line endings

Merge pull request OctopusDeploy#415 from OctopusDeploy/feature-dawop…

…s-addstep

Enabled integration between Octopus server and the Community Library

Merge branch 'KevinKelchen-master'

Fix file encoding

Merge branch 'jjaffery-patch-2'