Don't use TRIGCOLLOC if there are breakpoints in the domain.
Fixing a bug for periodic EIGs with breakpoints.
Merge remote-tracking branch 'origin/development' into fix-chebgui-periodic-breakpoints
Merge pull request #1326 from chebfun/fix-chebgui-periodic-breakpoints

Don't use TRIGCOLLOC if there are breakpoints in the domain.