Rename CDC terms

[erickpintor]

Description

This patch renames CDC terms according to our new guidelines.

Motivation and context

• "Steam token" becomes "Event source"
• .change_feed(..) becomes .feed(..)
• ChangeFeed{Options,Iterator,Page} becomes Feed{Options,Iterator,Page}

Old terms related to streaming are deprecated and should be removed in the next major version. Old terms related to event feeds were ripped off.

How was the change tested?

Unit tests included.

Screenshots (if appropriate):

NA.

Change types

• • Bug fix (non-breaking change that fixes an issue)
• • New feature (non-breaking change that adds functionality)
• • Breaking change (backwards-incompatible fix or feature)

Checklist:

• • My code follows the code style of this project.
• • My change requires a change to Fauna documentation.
• • My change requires a change to the README, and I have updated it accordingly.

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[erickpintor]

FYI: This is ready for a code review but tests will fail until the next docker release is out some time later today.

[pnwpedro]

I agree with @cynicaljoy. Let's improve that a little bit. Suggestion included. Otherwise looks good!

[jrodewig]

Look good overall! Left some minor nits and feedback.

[findgriffin]

Not sure if it fits in this PR, but something I just came across while doing event feeds for JVM is that we have a lot of classes with Query in the name that we might want to rename. Things like QueryFailure, QueryTimeout.

[erickpintor]

Not sure if it fits in this PR, but something I just came across while doing event feeds for JVM is that we have a lot of classes with Query in the name that we might want to rename. Things like QueryFailure, QueryTimeout.

I'd consider that a separate effort.

[erickpintor]

This is ready for another pass.

[jrodewig]

LGTM aside from a minor fix in the README. Thanks!