v0.8.1

Coluna v0.8.1

Diff since v0.8.0

Merged pull requests:

• Fixed bug in presolve (#1127) (@rrsadykov)
• "Strict integrality check" parameter for column generation (#1128) (@rrsadykov)
• Function to test whether a column is proper (#1129) (@rrsadykov)
• Option to run the presolve algorithm (#1130) (@rrsadykov)
• Version 0.8.1 (#1131) (@rrsadykov)