Allow to monitor collection size
Allow to monitor collection size

Elbandi/nagios-plugin-mongodb,mzupan/nagios-plugin-mongodb,warrenpnz/nagios-plugin-mongodb,hdeheer/nagios-plugin-mongodb,MingjunZhao/Mapscape-Nagios-Mongo,a-yiorgos/nagios-plugin-mongodb,alexp789/nagios-plugin-mongodb,adrianlzt/nagios-plugin-mongodb