Improve output of issues with no comments.
Improve output of issues with no comments.
Fix updates and future updates. 
Fix ordering by allUpdates (to sublist first quartile).
Refactoring: rename fileFile to fileFilePull.
Improve put issues and commits in map grouped by pair file.
Remove redundant metric.
Renamed variable.
Read new columns from matrix.
Fix toString and test.
Added constructor for order the file A -> B or B -> A based on confidence from apriori.
Added method for order the file A -> B or B -> A based on confidence from apriori.
Fix toInteger method when string is empty. Added permitted matrix.
Separated node table in matrix_node and metric_node.
Added index to order matrix_node and metric_node rows.
Added matrix to save top 10 and its file that changed together.