Add feature to start worker and notify host on challenge approval.

[KhalidRmb]

Pending:

• - Creating email template on Sendgrid.
• - Fill in template details in backend.

[codecov-commenter]

Codecov Report

Merging #2807 into master will increase coverage by 2.82%.
The diff coverage is 28.57%.

@@            Coverage Diff             @@
##           master    #2807      +/-   ##
==========================================
+ Coverage   72.93%   75.75%   +2.82%     
==========================================
  Files          83       20      -63     
  Lines        5368     2924    -2444     
==========================================
- Hits         3915     2215    -1700     
+ Misses       1453      709     -744     

Impacted Files	Coverage Δ
...ontend/src/js/controllers/featuredChallengeCtrl.js	68.99% <ø> (ø)
frontend/src/js/controllers/challengeCtrl.js	68.46% <22.22%> (-5.24%)	⬇️
frontend/src/js/controllers/permissionCtrl.js	36.36% <22.22%> (-63.64%)	⬇️
frontend/src/js/controllers/authCtrl.js	65.90% <25.00%> (-0.96%)	⬇️
frontend/src/js/controllers/challengeListCtrl.js	94.68% <50.00%> (ø)
...ntend/src/js/controllers/challengeHostTeamsCtrl.js	70.50% <66.66%> (-1.18%)	⬇️
frontend/src/js/controllers/teamsCtrl.js	71.17% <66.66%> (ø)
frontend/src/js/controllers/changePwdCtrl.js	100.00% <100.00%> (ø)
frontend/src/js/controllers/dashCtrl.js	99.00% <100.00%> (+0.07%)	⬆️
... and 38 more

Impacted Files	Coverage Δ
...ontend/src/js/controllers/featuredChallengeCtrl.js	68.99% <ø> (ø)
frontend/src/js/controllers/challengeCtrl.js	68.46% <22.22%> (-5.24%)	⬇️
frontend/src/js/controllers/permissionCtrl.js	36.36% <22.22%> (-63.64%)	⬇️
frontend/src/js/controllers/authCtrl.js	65.90% <25.00%> (-0.96%)	⬇️
frontend/src/js/controllers/challengeListCtrl.js	94.68% <50.00%> (ø)
...ntend/src/js/controllers/challengeHostTeamsCtrl.js	70.50% <66.66%> (-1.18%)	⬇️
frontend/src/js/controllers/teamsCtrl.js	71.17% <66.66%> (ø)
frontend/src/js/controllers/changePwdCtrl.js	100.00% <100.00%> (ø)
frontend/src/js/controllers/dashCtrl.js	99.00% <100.00%> (+0.07%)	⬆️
... and 38 more

---

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[deshraj]

Generally looks good to me. @Ram81 lets get this merged if your comments are incorporated.

[Ram81]

@KhalidRmb for now we can use count instead of success flags. You can make changes for the API in a new PR.

[RishabhJain2018]

Hey @Ram81 Can you please test this PR?

[Ram81]

@KhalidRmb Minor change. Let me know once you verify the case for notification signal for the unapproval case too. Rest of it LGTM

[KhalidRmb]

@KhalidRmb Minor change. Let me know once you verify the case for notification signal for the unapproval case too. Rest of it LGTM

Done.

[Ram81]

LGTM 👍 . Can you just share a screenshot of email template for any challenge. I didn't have aws dev & sendgrid credentials so couldn't test it.

[RishabhJain2018]

Hey @KhalidRmb, Can you please fix the Travis build here: https://travis-ci.org/github/Cloud-CV/EvalAI/builds/697538429#L244

[RishabhJain2018]

@KhalidRmb Can you please fix the travis build here?

[KhalidRmb]

@KhalidRmb Can you please fix the travis build here?

Done!

[RishabhJain2018]

@KhalidRmb Can you please resolve the conflicts here.

[KhalidRmb]

@KhalidRmb Can you please resolve the conflicts here.

Done,

[Ram81]

minor change. Rest of it LGTM 👍

[RishabhJain2018]

@KhalidRmb Please resolve the conflicts here.

[RishabhJain2018]

@KhalidRmb Please fix the build here.