FileList.append already excludes files that are not UTF-8 encodable, so rely on it when building the manifest. Ref #193

Test should use the same high-level interface for appending filenames as the object itself will use when building the filelist. Ideally, FileList wouldn't expose this attribute at all.

This code path doesn't make sense. If the UnicodeEncodeError occurred above, it will occur here too.

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extra : amend_source : 1a6e3e5d0f62c1ce54c0d42ce806bd13541642ca

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extra : rebase_source : 719fb2eb2c3599c57d7a11f5fc55cf9a88d74df7

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extra : rebase_source : b4dced905dbe7206c15ae35ccdae9c400637efa2

Just suppress the spurious IndexError when it happens. Rely on the environments where the behavior doesn't fail until the upstream issue can be resolved. Fixes #201.