Created initial bugreports dir if it doesn't exist.

    private String getPath(String file) {

        File rootDir = new ContextWrapper(mContext).getFilesDir();

        File dir = new File(rootDir, BUGREPORTS_DIR);

        if (!dir.exists()) {

            Log.i(TAG, "Creating directory " + dir);

            assertTrue("Could not create directory " + dir, dir.mkdir());

        }

        String path = new File(dir, file).getAbsolutePath();

        Log.v(TAG, "Path for '" + file + "': " + path);

        return path;