CB-14244 start 5.0.0-dev in master branch

[brodycj]

Platforms affected

iOS

What does this PR do?

As agreed in this dev@cordova.apache.org thread:

Start 5.0.0-dev (next major version) in master branch using the following command (with cordova-coho updates from brodybits/cordova-coho - improve-patch-and-dev-version-support branch:

./cordova-coho/coho prepare-platform-release-branch --version 5.0.0-dev -r ios --js 4.2.3 --pre 'CB-14244 '

with new flags to note:

• --js value to avoid including new updates from cordova-js at the same time
• --pre value to mark the commits with the corresponding JIRA number

Also update cordova.js with recent change from cordova-js@4.2.4 in a separate commit, with help from the following command:

./cordova-coho/coho copy-js -r ios -js 4.2.4

Merge instructions

• To be merged by pushing these commits directly to master branch

What testing has been done on this change?

• able to try adding to a blank project using cordova platform add github:brodybits/cordova-ios#cb-14244-start-5.0.0-dev-master and then run on simulator
• npm test succeeds on Travis CI

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.

[codecov-io]

Codecov Report

Merging #387 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #387   +/-   ##
=======================================
  Coverage   65.62%   65.62%           
=======================================
  Files          14       14           
  Lines        1702     1702           
  Branches      286      286           
=======================================
  Hits         1117     1117           
  Misses        585      585

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[brodycj]

Quick merge was done to unblock some other work.