Make Language data exportable

[vleong2332]

Export may not work properly in prod because it took longer than 30 seconds to complete.

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This change is

[coveralls]

Coverage remained the same at 74.183% when pulling 0acdf2a on WycliffeAssociates:language-export-admin into cd3b6a9 on unfoldingWord-dev:develop.

[phillip-hopper]

If it's a long running function, perhaps you should kick off another process that creates the export file, and return a page that tells the user he will receive an email with a link when the export is complete.

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Reviewed 1 of 1 files at r1.
Review status: all files reviewed at latest revision, all discussions resolved.

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Comments from Reviewable

[phillip-hopper]

Review status: all files reviewed at latest revision, 1 unresolved discussion, all commit checks successful.

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td/admin.py, line 55 at r1 (raw file):

class LanguageAdmin(EntryTrackingAdmin, ImportExportModelAdmin):

See comment above.

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Comments from Reviewable