Added damped oscillator tree problem.
Added file for no-paren mutation ULTRA
Fixed no-paren ULTRA version.
Merge branch 'master' into damped-oscillator-tree-problem
Fixed for chech of GOs.
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'master' into damped-oscillator-tree-problem
Merge branch 'OUTDATED-damped-oscillator-tree-problem' into problem-exploration
Added more cases to the testing set