SUSE CaaS Platform Documentation v3 (20190409)

• Add clarification for transactional update reboot parameter
• Fix link formatting in software mgmt
• Add note about skipping helm init refresh (bsc#1125305)
• Corrected LDAP port in security guide
• Added information about changed kubelet endpoint and health checks, Closes #166
• Merge pull request #170 from simonflood/patch-3
• Merge pull request #169 from simonflood/patch-2
• Merge pull request #168 from simonflood/patch-1
• Merge pull request #165 from simonflood/patch-2
• Merge pull request #164 from simonflood/patch-1
• Add Backup and Restore documentation
• Fix wording and formatting for transactional-update section
• Fix example for 'transactional-update remove' command
• Move etcd cluster sizing details into deployment guide
• Fix port for kubectl proxy
• Fix wording for quorum
• Add information about etcd cluster quorum
• Simplify salt command
• Fix wrong names for opensuse versions