Truncate parenthetical segments in input box suggestions by default.

This new setting cuts a parenthetical segment at the end of an
input box suggestion upon selection so the selection appears
without that segment in the input box. (#528)
Rebuild production JS file.
Add parenthetical synonym segments to plant name suggestions.

For example, type: cornus florida
get: Benthamia florida (formerly Cornus florida)

Run this command to rebuild the plant name suggestions:
DJANGO_SETTINGS_MODULE=gobotany.settings python -m \
gobotany.core.importer plant-name-suggestions

(#528)