I noticed these files all had strings such as "", " ", "_" that were
allocated each time some common methods were called, over 1000x on a
page in my app. This comment freezes all of these strings such that
they're only allocated once, saving many KB of memory allocation.
Use original config for backwards compatibility, and force label as item
wrapper tag in collection radio buttons / check boxes when using nested
boolean, to match boostrap requirements.
Andres Ehrenpreis