Leaderboard GUI missing features

[Didayolo]

Please have a look at the screenshots and the YAML file from this issue: #368

The leaderboard in V2:

• doesn't show the column names (label field in YAML), if uploading a v1 bundle. It uses the key instead.
• doesn't have the Date of last entry column
• doesn't have the entries column

Related issues: #610, #611

[Didayolo]

In addition to the column names replaced by the "key" instead of title:

After a dump, the competition.yaml lose the column names information:

At least when the benchmark is based on a v1 bundle.

EDIT: I guess the information was lost already during the upload, as suggested by the first point above.

[ihsaan-ullah]

@Didayolo
Just fixed the following issue from the 3 mentioned in this Issue.
PR: #856. Others don't seem too urgent.

[ihsaan-ullah]

Codalab screenshot

[Didayolo]

I close this issue as it is tackled by #871