Fix for aggregations.
Another fix for writing keywords.
Add handler for unknown unit keyword.
for #978
Merge remote-tracking branch 'origin/develop' into fix_aggregation
Replace all normalized to normalised.
Merge pull request #982 from ismailsunni/fix_wizard

Fix wizard
Tested under Ubuntu 12.04.
For the sake of the easiness of changing texts.
Merge pull request #983 from akbargumbira/inasafe_840

For the sake of the easiness of changing texts.
Address #782. Address source and title of the shake data.
Fix typo
Merge pull request #984 from akbargumbira/inasafe_782

Fix #782
Update Translations.