Release 3.1.1 - FIXes from community bugs

This release contains only bug fixes signaled by community:

1. In thermostat_over_climate mode, error when underlying climate is not available on startup - #56,
2. security_default_on_percent cannot be set to 0 - #63. Thanks to @daangel27.
3. When windows opens and closes rapidly (in the same second), the thermostat can stay Off - #66. Thanks to @frankb

No special recommandations for installation.