#991 - User sees abbreviated skip logic operators when dropdown is collapsed
#910 - tasks #1024 (any|all styled as dropdown) and #1026 (conditionally hide 'add a condition button')
#910 - task #1025 (When selecting options out of a multiselect question, dropdown should use line breaks instead of expanding)
#1028 - options aren't updating for multi select questions
select2 version change
#1040 - Skip logic always uses first option
Merge pull request #336 from kobotoolbox/skip-logic

Abbreviated skip logic operators and various skip logic fixes and tweaks