Enable agent readiness probe

[pavolloffay]

Signed-off-by: Pavol Loffay [email protected]

[jpkrohling]

This change is 

[objectiser]

@pavolloffay travis failed - I had same issue and had to restart the build - looks like a spurious problem finding golint.

[pavolloffay]

I will have a look at it

[pavolloffay]

locally the installation worked well. I will restart it again

[codecov]

Codecov Report

Merging #297 into master will increase coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #297      +/-   ##
==========================================
+ Coverage   88.52%   88.55%   +0.03%     
==========================================
  Files          70       70              
  Lines        3110     3119       +9     
==========================================
+ Hits         2753     2762       +9     
  Misses        244      244              
  Partials      113      113

Impacted Files	Coverage Δ
pkg/deployment/agent.go	100% <100%> (ø)	⬆️
pkg/apis/jaegertracing/v1/jaeger_types.go	100% <0%> (ø)	⬆️

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