Proposed change to guideline 4 to clarify use of build tools

[alanef]

Section 4 was probably composed before common use of build tools and now is contradictory,

Issues

1. The title use (mostly) which is far from definitive
2. Obscured code is definitively banned in paragraph 1 “ is not permitted in the directory”, no exception, yet blocks built in REACT have ‘obscured' compiled code
3. Then there is an unrelated comment about build tools and source

For new plugin developers, this is confusing. The proposed wording clarifies original source and build code and also acknowledges that the (open) build tool configuration is also an important part of being able to modify original code.

[davidperezgar]

I agree with this PR.

[frantorres]

Would add some additional cases as we saw some people being so prolific that they are able to read and edit minified code.

As for example:
Original source code must be human readable and not be deliberately obscured, minified, omitting comments, using unclear naming conventions and/or making use of other techniques that make it difficult to read, understand and/or edit.

[alanef]

"omitting comments, using unclear naming conventions"

Isnt this a bit subjective? Especially comments. When is a comment in a the original source code omitted or just not written?

[alanef]

I have mode some wording that I think covers those concerns

[frantorres]

Looks good, thanks :D