TheIDE has a new function that should simplify translating - it is now able to export translation files (same format at the one obtained using the commandline).
Also, special package AllForI18n simply uses all uppsrc packages, so translating process now involves just loading this package, using new export feature, submitting file in the forum.
When new uppdev is released, I would like to ask all translators (or potential translators..) to go through the process and update the translations to the new U++ version.