Cron cleanup

[bign8]

Problem	Cron is dirty code, difficult to understand, and lame!!
Solution	Clean it up and do some cool pipelines stuff
Status	Work In Progress

[codecov-io]

Current coverage is 8.77%

Merging #2 into master will decrease coverage by -0.15% as of 91237c3

@@            master     #2   diff @@
=====================================
  Files            2      2       
  Stmts           56     57     +1
  Branches         0      0       
  Methods          0      0       
=====================================
  Hit              5      5       
  Partial          0      0       
- Missed          51     52     +1

Review entire Coverage Diff as of 91237c3

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[bign8]

Re-reviewing this and trying to catch up on context that I've long since forgotten 6 years ago... there are a few good things hidden in here:

• Using the 75th percentile to limit the tags returned to the user list Percentile based tag culling #36
• Special logic to determine if images appear in multiple posts (might be the whole "graph" thing... neat, but 🤷)
• Splitting the cron to run on a backend instance (instead of a frontend) Move Cron to B1 Instance #35
• Sharded blob storage driver (for storing >1mb blobs in datastore)... please... don't do this... ever (use S3 or a Bucket)

[bign8]

I've quickly reviewed this (6 years later) and the underlying code seems to have changed sufficiently enough to invalidate this. The things that should be kept around (imo) have been converted into issues, otherwise, lets close this bad boy.