Update for MQ V9.1.5

Update for MQ V9.1.5
Solutions for #137 #140

Enable DESCR as a label

The DESCR field on a queue or channel can now be used as a label
Enable discovery of shared queues

Update for MQ V9.1.4

• Update for MQ 9.1.4 - No new base API function introduced
• Add amqsgbr sample for browse option
• ibmmq - Add qmgr variant of the CB function for event handlers (#128)
• mqmetric - Add MaxChannels/MaxActiveChannels for z/OS (#129)
• mqmetric - Add MaxInst/MaxInst for SVRCONN channels (ibm-messaging/mq-metric-samples#21)

Some API cleanup

ibmmq - Enable use of Context in MQPMO structure (#122)
ibmmq - Remove unusable fields referring to Distribution List structures

New GetSlice verb

• Add new verb GetSlice similar to Get() but returning ready-sized buffer
• Update Docker build scripts for new compiler version
• Issue warning if trying to monitor queues with '/' in names

Parameter validation

Add validators for some of the MQI structures

Add RESET QSTATS option for z/OS queue manager

The RESET QSTATS command can be used to get data on messages put/got through a queue. But it should only be enabled in this monitoring package if there are no other monitors running that command against the same queue manager - otherwise the data collection interferes.

Update for MQ V9.1.3

Update to reference MQ V9.1.3
Fix subscription leak in mqmetric package

Various mqmetric enhancements

enable re-expansion of queue wildcard names to pick up newly-created queues
allow negative pattern matching for queue names
add DISPLAY USAGE for z/OS bufferpool and pageset usage
add further CHSTATUS attributes
stronger guards on unexpected PCF response data

More options for mqmetric capabilities

• Allow V8 Distributed platforms to be monitored
• Allow %full to be calculated for queues
• Use new version of Inq() verb in samples