Fix initialisation order warning
Fix initialisation order warning
Fix unsigned/integer comparison warning
Fix unsigned/integer comparison warning
Change max number of clusters from int to unsigned
Return void in sub-threshold tower association

We don't currently return anything, and there isn't much useful
information we can return anyway
Remove unused variable
Remove unused variables
Remove unused variables
Remove unused variables
Remove unused variable
Remove extra semi-colon
Make array size argument const
Change variable-length parameter arrays to vectors