Implement set of saved value

[Mariyo]

Hello,

I propose to improve this part:

SugarAdvancedWorkflowCustomPHPMethods/src/custom/include/javascript/pmse/activity.js

Line 74 in 6804cb5

comboApi.setOptions(rules.result);

by line with setValue.... It should prefill saved value after refresh.

comboApi.setOptions(rules.result); 
comboApi.setValue(data.act_service_method || ((rules.result[0] && rules.result[0].value) || null));