ProWriter: Prepend $$PWD to files if adding to a .pri file

QMake's behavior for .pri files otherwise treats those paths as relative
to the .pro file. That's rarely what you want.

Also change the remove code to handle those files.

Change-Id: I5fe95035b470c32c365adbdee161f4a6cae05c2b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Android: Warn against a package name starting with _

Task-number: QTCREATORBUG-12009
Change-Id: Ia8bded2e4c84b3fedca2f0a64a487cd1760e07d5
Reviewed-by: BogDan Vatra <bogdan@kde.org>
Android: Add a message box to remove avd

Since it takes effect immediately.

Task-number: QTCREATORBUG-11994
Change-Id: I48d322195ac62036c4e6fabc61b57a434cbdb495
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: BogDan Vatra <bogdan@kde.org>
AndroidAvdModel: Code cosmetics, make ::avdName const

Change-Id: I3b5ea968732cf3b69d37e6bc4c0bd514be1ceb05
Reviewed-by: BogDan Vatra <bogdan@kde.org>