SMS-notifications and Voice call enabling

To enable SMS-notifications and Voice Calls, it is necessary:

In the client configuration file /usr/local/saymon/client/client-config.js
to set the parameters enableSmsTrigger and enableVoiceCallTrigger to true:
```
return {
	...
	enableVoiceCallTrigger: true,
	enableSmsTrigger: true,
	...
	}
```
In the section Server of the server configuration file /etc/saymon/saymon-server.conf
to add paths to the scripts which send SMS-notifications and implement voice calls:
```
"server" : {
    ...
    "sms_script": "path to script to send sms-notifications",
    "voice_call_script": "path to script for voice calls",
    ...
    }
```
Script for sending SMS-notifications obtains the following arguments:
$1 - Addressee's phone number (as it was entered in the trigger);
$2 - ID of the object in which the trigger was activated;
$3 - Name of the object in which the trigger was activated;
$4 - ID of the state of the object;
$5 - Text of the notification which was set up in Notification templates.

Script for implementing voice calls obtains the following arguments:
$1 - Addressee's phone number (as it was entered in the trigger);
$2 - ID of the object in which the trigger was activated;
$3 - Name of the object in which the trigger was activated;
$4 - ID of the state of the object.
To restart the service saymon-server in order to apply changes:
```
sudo service saymon-server restart
```