(Bluefox) Fix some null pointer errors.

getUrl, match, readdir
Update gismeteo.js
Update gismeteo.js
Update settings.html
Update settings.html
(Bluefox) fix ping adapter.
(Bluefox) check localhost address.
Update ccu.io.Lang.js
(Bluefox) Fix german comments
Fix no more log entries, if no CCU is defined.

If the IP is set to 0.0.0.0, there will no more log entries for
reconnection to CCU. This will be safe the SD-Card, if no CCU is used.
(Eisbaeeer) Check ccu ip address "0.0.0.0"
Merge pull request #127 from hobbyquaker/develop

Develop
(Bluefox) improve textCommands for Home Commander
Merge branch 'master' of https://github.com/hobbyquaker/ccu.io
(Bluefox) Fix grunt for debian
(Bluefox) build debug info into textCommands
(Bluefox) debug outputs in textCommands
(Bluefox) improve textCommands
(Bluefox) remove useless error messages from log
(Bluefox) fix sayIt for russian