CB-14240 mark 7.1.2-dev on 7.1.x

[brodybits]

Platforms affected

Android

What does this PR do?

Mark 7.1.2-dev, using the following command on my improve-patch-and-dev-version-support coho branch (apache/cordova-coho#188):

./cordova-coho/coho prepare-platform-release-branch --version 7.1.2-dev -r android -b 7.1.x --pre 'CB-14240 '

Motivation

Wanted to mark -dev version before cherry-pick from master as proposed in #469

Merge instructions

To be merged by push to 7.1.x branch

What testing has been done on this change?

TODO:

• check that npm test items pass on Travis CI
• check that it is possible to do cordova platform add brodybits/cordova-android#cb-14240-mark-7.1.2-dev-on-7.1.x on a new Cordova project and run on Android from command line

Merged without checking these items to unblock other work. Should not break anything.

Checklist

• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

[brodybits]

Merged without test or review to unblock other work.

[jcesarmobile]

Thanks!