v0.6.0

• cache_insert and cache_remove default to their non-HA counterparts if HA_MODE == false
  bcde62c
• deprecated code elements cleaned up
  51fbe7f
• stability improvements inside certain K8s clusters - broken pipe prevention
  e20bc39
• removed the proto file build from build.rs to make docs.rs work (hopefully)
  b53a2d3