v3.1.0

• Update peer dependency of react final-form as required by #61 7f7fbab
• Merge pull request #61 from huan086/fix/mutators a9be6b5
• Optimize move, removing the need to move field state to a temporary field or looping over fields many times. 71bebc7
• Change pop mutator to call remove mutator. Change remove and removeBatch behavior to set array value to undefined when all items have been removed. d7c4856
• Optimize swap, removing the need to move field state to a temporary field. c7bf418
• Fix insert mutator removing fields unexpectedly. b32b947
• Fix removeBatch mutator removing more fields than expected. 935fb43
• Fix remove mutator removing more fields than expected. Revert changes from #39 that moves fieldSubscribers, causing the wrong field to be notified. f69ab19
• fix(remove): submit errors are not removed on "fields.remove" call (#48) 916b720
• fix: flow libdefs naming (#52) 7e27b5c

v3.0.2...v3.1.0