[Android] Fix that dict.iteritems() is no longer supported in python 3.0+

'dict' object has no attribute 'iteritems' in python 3.0 and later,
use dict.items() instead.

BUG=https://crosswalk-project.org/jira/browse/XWALK-2129
Merge pull request #2213 from jinbang/fix_dict_iteritems

[Android] Fix that dict.iteritems() is no longer supported in python 3.0...
[Android] make_apk: Use open(), not file().

The latter does not exist in Python 3, so those functions were broken
when invoked.
Bump version to 8.36.178.0
Merge pull request #2216 from rakuco/py3-compatibility

[Android] make_apk: Use open(), not file().
[Android] Package name must be specified even having manifest

Package name is the ID of an Android application,
and the manifest will not carry the package field.
We should never generate the package name based on some rules we invented.
So it must be specified in argument.