Recommended update for salt

This update for salt fixes the following issues:

- Updates the documentation to 2018.3.0
- No more AWS EC2 rate limitations in salt-cloud (bsc#1088888)
- MySQL returner now also allows to use Unix sockets (bsc#1091371)
- Do not override jid on returners, only sending back to master (bsc#1092373)
- salt-ssh:
* Bugfix: Option --extra-filerefs doesn't add all files to the state archive
* Pillar completely overwritten (not merged) when doing module.run + state.apply
with pillar in kwargs
- Remove minion/thin/version if exists to force thin regeneration (bsc#1092161)

Fixed bugs
bnc#1091371
salt master does not allow communication with MySQL database via unix sockets
bnc#1092373
Jid different in Splunk and Event Bus output
bnc#1088888
salt-cloud and salt-api fails when creating large clusters in EC2 (~50 VMs)
bnc#1092161
Sle15 portus image building cause ISE
Selected Binaries
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