I'm afraid this will be difficult.
aapt in fact is built for v2.3, but it *did* work on my v2.2
The problem is that aapt uses C/C++ classes that are not available on older Android versions.
You could try following:
1. Find out exactly what core code is missing
2. Provide replacement code for the missing core code
3. Re-build appt
4. Re-build JavaIDEdroid
Tom