'version' is a mandatory parameter in xwalk_apkgen, should probably be optional

[baleboy]

After installing crosswalk-apk-generator with npm, the "xwalk_apkgen" command example here:

https://www.npmjs.org/package/crosswalk-apk-generator

fails because the 'version' field is missing though it seems to be mandatory. It would be better if it were optional (as in make_apk)

xwalk_apkgen --androidSDKDir
--xwalkAndroidDir
--appRoot
--appLocalPath

--name
--package
--outDir

[townxelliot]

If it's optional, what should we do in the manifest? Not set the version field at all or set it to a default? (Not setting it would make it difficult for the resulting package to be updated.)

[baleboy]

I don't know :) I just noticed it was optional in make_apk so I thought the same logic could be used here. But I'm OK also mentioning in the documentation that the parameter is mandatory.