Fix build.py for webview and service_only bootstraps (now gradle compatible)
Fix build.py for webview and service_only bootstraps (now gradle compatible)

rnixx/python-for-android,PKRoma/python-for-android,germn/python-for-android,PKRoma/python-for-android,PKRoma/python-for-android,germn/python-for-android,kivy/python-for-android,kivy/python-for-android,kivy/python-for-android,kronenpj/python-for-android,PKRoma/python-for-android,rnixx/python-for-android,germn/python-for-android,kronenpj/python-for-android,rnixx/python-for-android,kivy/python-for-android,rnixx/python-for-android,kivy/python-for-android,germn/python-for-android,PKRoma/python-for-android,kronenpj/python-for-android,rnixx/python-for-android,germn/python-for-android,kronenpj/python-for-android,kronenpj/python-for-android,germn/python-for-android,rnixx/python-for-android