fix the issue that getPopStats did't return the results when format is set to 'long'
put delimiter between nodes in the error print out for .checkRedundantNodes
resolve package version conflicts when cherry-pick 67b89c8608f3d3e0ef415f8ff4df909cc7de739a
bump version
finding nearerest reference node based on the depths of common ancestor
change the way of searching reference node when parsing boolean gate
reslove cherry-pick conflicts
prevent the self-referral boolean gate
merge from trunk