OPAL-2271: Always repopulate categories because we can select another derivation method and categories were not reinitialized
OPAL-2237: Bootstrapified Temporal derivation wizard
OPAL-2265: Hide range from-to dates by default
OPAL-2265: Removing gwt.log
Merge pull request #441 from emorency/OPAL-2237-derivation-layout

Opal 2237 derivation layout