* Add available translations for new language option
* Add language option to IVR menu editing page
Adds the option to define language on the IVR edit page. This is needed because when a phrase is selected in a language other than the default language, Freeswitch fails to load the file.
* Update German and Austrian translations
Update German and Austrian translations and added missing English translations for FAX application.
* Update German & Austrian translations
* Update CDR Stats application.
Fix. Number of calls always calculate only for all domain.
Fix. Number of missed calls ignores any search parameters and use only `inbound` filter.
Fix. Calls duration for days use only domain filter and do not use any other filters.
Add. Limit setting for number of hours to calculate statistic.
Add. When timestamp set then calculate statistic only for this period.
* Fix. Calculate `Calls per minute`
Fix. Prevent divide `0/0` when calculate `ALOC`
* Fix. `Hours` have to be integer type.
* Add. BLF indication for call forward.
To display general status of CallForward use blf like `forward+<extension>`
To display status for specific phone number use blf like `forward+<extension>/<number>`
* Fix. Escape variable in regex expression.
* Fix. Sync DND and CF blf.
* Add. `blf_subscribe` service which can handle all custom subscriptions.
To run for specific protocol it possible run as `luarun blf_subscribe.lua <PROTO>`
