* Improve target-dir restriction for detecting new android project structure used in plugin.xml. (#575)
* Clarify old source-file declaration way from the new one and improve ambiguous code.
* Better check `src/main` forms.
* Replace path search with RegExp vars.
* Fix RegExp in order to match `/` or `EOL`.
* Remove template strings for NodeJS 4 support (wanted in case we port these changes to `7.1.x` at some point).
* Add pointer to deprecation plan in GH-580.