Use FOURCOLLOC if periodic boundary conditions.
Add a test.
Merge remote-tracking branch 'origin/feature-eigs-periodic' into feature-expm-periodic
Replace adjustPref by determinePref and clearPeriodicBC in chebop/expm.
Merge remote-tracking branch 'origin/feature-eigs-periodic' into feature-expm-periodic
Modification needed to follow what's done in feature-eigs-periodic.
Merge branch 'development' of github.com:chebfun/chebfun into feature-expm-periodic
The chebop returned by clearPeriodicBCs is not useful for the code.
Replace N by dummy.
Merge remote-tracking branch 'origin/development' into feature-expm-periodic
Four -> Trig.
Add a getExpmDimAdjust method.
Merge remote-tracking branch 'origin/feature-expm-periodic' into feature-trigspec