Allow non-english labels to be used on Graph Templates

[PonomarenkoVladimir]

Describe the bug
Non-English labels are not displayed correctly on graphs

To Reproduce
Have a Template graphics: labels on Russian language

Result: labels are not displayed

Suggestion:
Correct the file ./lib/rrd.php: line 1167, function rrdtool_function_graph
Add a line to display labels in Russian (or other language):
setlocale (LC_CTYPE, ‘ru_RU.UTF8’);
Result:

Desktop (please complete the following information):

• OS: Windows 7
• Browser: Chrome

[cigamit]

Please update include/global_languages.php from the develop branch and verify that this is fixed that way.

[PonomarenkoVladimir]

Works. Thank!