Make sure screen.orientation is always valid

If the orientation has not been set by the extension yet, query it
synchronously.
Merge pull request #1488 from kenchris/sync

Make sure screen.orientation is always valid
Bump version to 4.32.71.0
[Android] Load manifest.json if it exists but not specified in options.

Because the manifest has been supported by packaging tool, and it's the
recommended source for packaging. So manifest.json will be loaded
if it does exist.
Merge pull request #1471 from junmin-zhu/icon

[Android] Load manifest.json if it exists but not specified in options.