CB-7512 Make gradle build only a single config for sub-libraries (release vs debug)
CB-7512 Use a standard build.gradle for all plugins

Plugins can extend it by providing a "build-extras.gradle"
Added gradle distribution URL updating.

Conflicts:
	bin/templates/cordova/lib/build.js
	framework/build.gradle
Merge branch 'master' into 4.0.x (gradle plugin template)

Conflicts:
	bin/templates/cordova/lib/build.js
	framework/build.gradle