Update node-xmpp-core to version 5.0.2 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

node-xmpp-core just published its new version 5.0.2, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of node-xmpp-core – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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The new version differs by 13 commits .

• 4cfd73d 5.0.2
• 922f69b Merge pull request #92 from node-xmpp/servername
• 634b917 add servername param to setSecure
• d0d3820 Merge pull request #88 from node-xmpp/deps
• 0ccf30e bump dependencies
• 2998dec Merge pull request #87 from mdlavin/use-removeListener-on-TLS-upgrade
• 3877ba0 Use explicit socket.removeListener calls instead of blank socket.removeAllListeners when upgrading to TLS
• 3061bda 5.0.1
• 5c9fa03 Merge pull request #85 from node-xmpp/node-xmpp-tls-connect
• a1eb7c1 use node-xmpp tls-connect fork
• eb1ee4a 5.0.0
• e14e4ed Merge pull request #83 from node-xmpp/stanza
• b248b70 use node-xmpp-stanza

See the full diff.

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[coveralls]

Coverage remained the same at 100.0% when pulling 2795b0a on greenkeeper-node-xmpp-core-5.0.2 into 2117e12 on master.