Swtich from forced TLSv1.0 to TLSv1.2

Later releases of Icinga2 only supports TLSv1.2 for API communication.

Use input validation for services

JIRA-PLATTFORM-602: Use name validation

Use it for services as well

Allow more characters for names

Also allow @ to better support contacts

Input validation for names

We don't want to allow strange characters that might cause problems when used as keys for icinga2 api. We only allow names matching [\w-.]

Create service bugfix

v0.11.9

Fix create service bug

Editor bugfix

v0.11.8

Fix editor  bug

Bugfix for backbutton

v0.11.7

Fix backbutton bug

Better back button

A button that actually takes you back to where you were (if your browser supports referer headers).

Also: make notes editable in the editor

Bugfix for delete selection

v0.11.5

Fix selection bug

Bugfix for host delete

v0.11.4

Fix bug for delete of hosts