triming keywords in token input widget
upgrade steo for trimming subjects
test trim
test upgrade step
changelog
fix package dependencies
remove needless test
improve performance on keyword processing
use catalog brains in a better way and reindex just the Subjects index when needed
add some debug messages to the upgrade step that could be useful for testing purposes
Merge pull request #34 from collective/trim-token-input

Trim token input (fixes #33)